diff --git a/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/model/BasLaancAprvRs.java b/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/model/BasLaancAprvRs.java
index 44136c90..cdca995b 100644
--- a/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/model/BasLaancAprvRs.java
+++ b/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/model/BasLaancAprvRs.java
@@ -1,6 +1,7 @@
 package com.palnet.biz.api.bas.laanc.model;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.palnet.biz.api.comn.file.model.ComnFileModel;
 import com.palnet.biz.jpa.entity.type.ArcrftTypeCd;
 import com.palnet.biz.jpa.entity.type.ArcrftWghtCd;
 import com.palnet.biz.jpa.entity.type.FltPurpose;
@@ -82,6 +83,8 @@ public class BasLaancAprvRs {
     private String serviceType;
     @ApiParam(name = "기업여부")
     private String corpRegYn;
+    @ApiParam(name = "공문URL")
+    private String pdfUrl;
 
     // 하나의 필드로 묶어서 처리
     @ApiParam(name = "기체 무게")
@@ -112,4 +115,5 @@ public class BasLaancAprvRs {
     private List<BasLaancArcrftModel> arcrftList;
     private List<BasLaancPilotModel> pilotList;
 
+
 }
diff --git a/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancAprvService.java b/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancAprvService.java
index 603e2fad..aa9e1650 100644
--- a/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancAprvService.java
+++ b/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancAprvService.java
@@ -2,6 +2,8 @@ package com.palnet.biz.api.bas.laanc.service;
 
 import com.palnet.biz.api.bas.laanc.model.BasLaancAprvListRq;
 import com.palnet.biz.api.bas.laanc.model.BasLaancAprvRs;
+import com.palnet.biz.api.comn.file.model.ComnFileModel;
+import com.palnet.biz.api.comn.file.service.ComnFileService;
 import com.palnet.biz.jpa.model.LaancAprvSearchDto;
 import com.palnet.biz.jpa.model.LaancPlanDto;
 import com.palnet.biz.jpa.repository.flt.FltPlanQueryRepository;
@@ -15,6 +17,8 @@ import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
 
 /**
  * packageName    : com.palnet.biz.api.bas.laanc.service
@@ -33,9 +37,11 @@ import java.util.List;
 public class BasLaancAprvService {
 
     private final FltPlanQueryRepository fltPlanQueryRepository;
+    private final ComnFileService comnFileService;
 
     /**
      * laanc 승인 목록
+     *
      * @param rq
      * @param pageable
      * @return
@@ -46,21 +52,38 @@ public class BasLaancAprvService {
         Page<BasLaancAprvRs> rs = PageUtils.convert(result, BasLaancAprvMapper.MAPPER.toRsList(result.getContent()));
         return rs;
     }
+
     public List<BasLaancAprvRs> getLaancAprvList2(BasLaancAprvListRq rq) {
         LaancAprvSearchDto searchDto = BasLaancAprvMapper.MAPPER.toDto(rq);
         List<LaancPlanDto> result = fltPlanQueryRepository.findAllAprvListBySearch2(searchDto);
+        List<Integer> fileGroupNoList = result.stream().map(LaancPlanDto::getFileGroupNo).filter(Objects::nonNull).collect(Collectors.toList());
+        List<ComnFileModel> fileListByGroupNoList = comnFileService.getFileListByGroupNoList(fileGroupNoList);
+        result.forEach(dto -> {
+            if (dto.getFileGroupNo() != null) {
+                fileListByGroupNoList.stream()
+                        .filter(file -> Objects.equals(file.getFileGroupNo(), dto.getFileGroupNo()))
+                        .findFirst()
+                        .ifPresent(file -> dto.setPdfUrl(file.getDownloadUrl()));
+            }
+        });
         List<BasLaancAprvRs> rs = BasLaancAprvMapper.MAPPER.toRsList(result);
+
         return rs;
     }
 
     /**
      * laanc 승인 상세
+     *
      * @param planSno
      * @return
      */
     public BasLaancAprvRs getLaancAprvDetail(String planSno) {
-        if(planSno == null) throw new CustomException(ErrorCode.NON_VALID_PARAMETER);
+        if (planSno == null) throw new CustomException(ErrorCode.NON_VALID_PARAMETER);
         LaancPlanDto result = fltPlanQueryRepository.findAprvById(Integer.parseInt(planSno));
+        if (result != null && result.getFileGroupNo() != null) {
+            ComnFileModel comnFileModel = comnFileService.getOfficialDocumentFileListByGroupNo(result.getFileGroupNo());
+            if (comnFileModel != null) result.setPdfUrl(comnFileModel.getDownloadUrl());
+        }
         BasLaancAprvRs rs = BasLaancAprvMapper.MAPPER.toRs(result);
         return rs;
     }
diff --git a/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancService.java b/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancService.java
index fe029a3b..9ca710d6 100644
--- a/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancService.java
+++ b/pav-server/src/main/java/com/palnet/biz/api/bas/laanc/service/BasLaancService.java
@@ -296,7 +296,10 @@ public class BasLaancService {
 
         ComFileBas comFileBas = comnFileService.makePdf(laancPdfModel);
 
-        String sb = FILE_DOWNLOAD_URL + "?fileSno=" + comFileBas.getFileSno();
+        rBasEntity.setFileGroupNo(comFileBas.getFileGroupNo());
+        fltPlanBasRepository.save(rBasEntity);
+
+        String downloadUrl = comnFileService.getDownloadUrl(comFileBas.getFileSno());
 
         // SMS 전송
         try {
@@ -320,7 +323,7 @@ public class BasLaancService {
         }
 
         BasLaancLastRs rs = BasLaancLastRs.builder()
-                .pdfUrl(sb)
+                .pdfUrl(downloadUrl)
                 .address(address)
                 .build();
 
diff --git a/pav-server/src/main/java/com/palnet/biz/api/comn/file/model/ComnFileModel.java b/pav-server/src/main/java/com/palnet/biz/api/comn/file/model/ComnFileModel.java
index 95c842b4..09708a3b 100644
--- a/pav-server/src/main/java/com/palnet/biz/api/comn/file/model/ComnFileModel.java
+++ b/pav-server/src/main/java/com/palnet/biz/api/comn/file/model/ComnFileModel.java
@@ -22,6 +22,7 @@ import lombok.NoArgsConstructor;
 @Builder
 public class ComnFileModel {
     private Integer fileSno;
+    private Integer fileGroupNo;
     private String downloadUrl;
     private String fileName;
 }
diff --git a/pav-server/src/main/java/com/palnet/biz/api/comn/file/service/ComnFileService.java b/pav-server/src/main/java/com/palnet/biz/api/comn/file/service/ComnFileService.java
index 6136dcce..7e6c9346 100644
--- a/pav-server/src/main/java/com/palnet/biz/api/comn/file/service/ComnFileService.java
+++ b/pav-server/src/main/java/com/palnet/biz/api/comn/file/service/ComnFileService.java
@@ -394,13 +394,46 @@ public class ComnFileService {
         List<ComnFileModel> result = new ArrayList<>();
         for (ComFileBas file : files) {
             result.add(ComnFileModel.builder()
+                    .fileGroupNo(file.getFileGroupNo())
                     .fileSno(file.getFileSno())
                     .fileName(file.getFileOriNm())
-                    .downloadUrl(DOWNLOAD_URL + "/" + file.getFileSno())
+                    .downloadUrl(getDownloadUrl(file.getFileSno()))
                     .build());
         }
 
         return result;
+    }
+
+    public ComnFileModel getOfficialDocumentFileListByGroupNo(Integer fileGroupNo) {
+        ComFileBas file = comFileBasRepository.findFirstByFileGroupNoAndDelYnOrderByCreateDtDesc(fileGroupNo, "N");
+
+        ComnFileModel result = ComnFileModel.builder()
+                .fileGroupNo(file.getFileGroupNo())
+                .fileSno(file.getFileSno())
+                .fileName(file.getFileOriNm())
+                .downloadUrl(getDownloadUrl(file.getFileSno()))
+                .build();
 
+        return result;
+    }
+
+    public String getDownloadUrl(Integer fileSno) {
+        if(fileSno == null) return null;
+        return DOWNLOAD_URL + "/" + fileSno;
+    }
+
+    public List<ComnFileModel> getFileListByGroupNoList(List<Integer> fileGroupNoList) {
+        List<ComFileBas> files = comFileBasRepository.findByFileGroupNoInAndDelYnOrderByCreateDtDesc(fileGroupNoList, "N");
+        List<ComnFileModel> result = new ArrayList<>();
+        for (ComFileBas file : files) {
+            result.add(ComnFileModel.builder()
+                    .fileGroupNo(file.getFileGroupNo())
+                    .fileSno(file.getFileSno())
+                    .fileName(file.getFileOriNm())
+                    .downloadUrl(getDownloadUrl(file.getFileSno()))
+                    .build());
+        }
+
+        return result;
     }
 }
diff --git a/pav-server/src/main/java/com/palnet/biz/config/WebSecurityConfig.java b/pav-server/src/main/java/com/palnet/biz/config/WebSecurityConfig.java
index ebab2e11..19067c97 100644
--- a/pav-server/src/main/java/com/palnet/biz/config/WebSecurityConfig.java
+++ b/pav-server/src/main/java/com/palnet/biz/config/WebSecurityConfig.java
@@ -40,6 +40,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
 			"/api/ctr/cntrl/id/**",
 			"/api/server/**",
 			"/api/comn/file/download",
+			"/api/comn/file/download/**",
 			/* swagger v2 */
 			"/v2/api-docs",
 			"/swagger-resources",
diff --git a/pav-server/src/main/java/com/palnet/biz/jpa/entity/FltPlanBas.java b/pav-server/src/main/java/com/palnet/biz/jpa/entity/FltPlanBas.java
index fd4c7b07..ac8e564f 100644
--- a/pav-server/src/main/java/com/palnet/biz/jpa/entity/FltPlanBas.java
+++ b/pav-server/src/main/java/com/palnet/biz/jpa/entity/FltPlanBas.java
@@ -71,9 +71,13 @@ public class FltPlanBas {
     @Column(name = "DEL_YN")
     private String delYn;
 
+    @Column(name = "FILE_GROUP_NO")
+    private Integer fileGroupNo;
+
     @Column(name = "CREATE_USER_ID")
     private String createUserId;
 
+
     @CreationTimestamp
 //    @Temporal(TemporalType.TIMESTAMP)
     @Column(name = "CREATE_DT", columnDefinition = "TIMESTAMP")
diff --git a/pav-server/src/main/java/com/palnet/biz/jpa/model/LaancPlanDto.java b/pav-server/src/main/java/com/palnet/biz/jpa/model/LaancPlanDto.java
index 7a85d837..4a7fe772 100644
--- a/pav-server/src/main/java/com/palnet/biz/jpa/model/LaancPlanDto.java
+++ b/pav-server/src/main/java/com/palnet/biz/jpa/model/LaancPlanDto.java
@@ -29,6 +29,7 @@ public class LaancPlanDto {
     private Integer planSno;
     private String groupId;
     private Integer cstmrSno;
+    private String serviceType;
     private String memberName;
     private String email;
     private String hpno;
@@ -40,15 +41,16 @@ public class LaancPlanDto {
     private Instant schFltEndDt;
     private FltPurpose fltPurpose;
     private FltType fltType;
+    private String corpRegYn;
     private String aprvlYn;
     private Instant aprvlDt;
     private String delYn;
+    private Integer fileGroupNo;
     private String createUserId;
     private Instant createDt;
     private String updateUserId;
     private Instant updateDt;
-    private String serviceType;
-    private String corpRegYn;
+    private String pdfUrl;
     private List<LaancPlanAreaDto> areaList;
     private List<LaancPlanArcrftDto> arcrftList;
     private List<LaancPlanPilotDto> pilotList;
diff --git a/pav-server/src/main/java/com/palnet/biz/jpa/repository/com/ComFileBasRepository.java b/pav-server/src/main/java/com/palnet/biz/jpa/repository/com/ComFileBasRepository.java
index 439f94bf..f8e474be 100644
--- a/pav-server/src/main/java/com/palnet/biz/jpa/repository/com/ComFileBasRepository.java
+++ b/pav-server/src/main/java/com/palnet/biz/jpa/repository/com/ComFileBasRepository.java
@@ -8,6 +8,8 @@ import java.util.List;
 
 @Repository
 public interface ComFileBasRepository extends JpaRepository<ComFileBas, Integer>{
+    List<ComFileBas> findByFileGroupNoInAndDelYnOrderByCreateDtDesc(List<Integer> fileGroupNos, String delYn);
+    ComFileBas findFirstByFileGroupNoAndDelYnOrderByCreateDtDesc(int fileGroupNo, String delYn);
     List<ComFileBas> findByFileSnoInAndDelYn(List<Integer> fileSnos, String delYn);
 
 	ComFileBas findFirstByOrderByFileSnoDesc();
diff --git a/pav-server/src/main/java/com/palnet/biz/jpa/repository/flt/FltPlanQueryRepository.java b/pav-server/src/main/java/com/palnet/biz/jpa/repository/flt/FltPlanQueryRepository.java
index 3593b49c..5c8d631c 100644
--- a/pav-server/src/main/java/com/palnet/biz/jpa/repository/flt/FltPlanQueryRepository.java
+++ b/pav-server/src/main/java/com/palnet/biz/jpa/repository/flt/FltPlanQueryRepository.java
@@ -1,6 +1,7 @@
 package com.palnet.biz.jpa.repository.flt;
 
 import com.palnet.biz.api.bas.flight.model.*;
+import com.palnet.biz.api.comn.file.service.ComnFileService;
 import com.palnet.biz.api.main.dash.model.MainDashStcsModel;
 import com.palnet.biz.jpa.entity.*;
 import com.palnet.biz.jpa.model.*;
@@ -39,6 +40,7 @@ public class FltPlanQueryRepository {
 
 
     private final JPAQueryFactory query;
+    private final ComnFileService comnFileService;
 
 
     // 비행계획서 목록
@@ -784,6 +786,7 @@ public class FltPlanQueryRepository {
                                 bas.fltPurpose,
                                 bas.aprvlYn,
                                 bas.delYn,
+                                bas.fileGroupNo,
                                 bas.createUserId,
                                 bas.createDt,
                                 bas.updateUserId,
@@ -858,6 +861,7 @@ public class FltPlanQueryRepository {
         QFltPlanBas bas = QFltPlanBas.fltPlanBas;
         QFltPlanArea area = QFltPlanArea.fltPlanArea;
         QFltPlanArcrft arcrft = QFltPlanArcrft.fltPlanArcrft;
+        QComFileBas fileBas = QComFileBas.comFileBas;
 
         // serach
         BooleanBuilder builder = new BooleanBuilder();
@@ -917,6 +921,7 @@ public class FltPlanQueryRepository {
                                 bas.fltPurpose,
                                 bas.aprvlYn,
                                 bas.delYn,
+                                bas.fileGroupNo,
                                 bas.createUserId,
                                 bas.createDt,
                                 bas.updateUserId,
@@ -1015,6 +1020,7 @@ public class FltPlanQueryRepository {
                                         bas.fltPurpose,
                                         bas.aprvlYn,
                                         bas.delYn,
+                                        bas.fileGroupNo,
                                         bas.createUserId,
                                         bas.createDt,
                                         bas.updateUserId,