diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/include/doc_errno.h b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/include/doc_errno.h
index 3189dccbb8d93dcbd8b1f848b23a8784682f98e7..274bc84148347b069bcf4b0ff3e0552420db7715 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/include/doc_errno.h
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/include/doc_errno.h
@@ -39,6 +39,7 @@ constexpr int E_JSON_PATH_NOT_EXISTS = E_BASE + 41;
 constexpr int E_RESOURCE_BUSY = E_BASE + 50;
 constexpr int E_FAILED_MEMORY_ALLOCATE = E_BASE + 51;
 constexpr int E_INNER_ERROR = E_BASE + 52;
+constexpr int E_INVALID_FILE_FORMAT = E_BASE + 53;
 
 int TransferDocErr(int err);
 } // namespace DocumentDB
diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/doc_errno.cpp b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/doc_errno.cpp
index 533c540439d5dd679db09670962c9fa0c1394ba4..46be82ab77d195b6c2a77565cfceecc49bc619ad 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/doc_errno.cpp
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/doc_errno.cpp
@@ -77,6 +77,9 @@ int TransferDocErr(int err)
         case -E_INNER_ERROR:
             outErr = GRD_INNER_ERR;
             break;
+        case -E_INVALID_FILE_FORMAT:
+            outErr = GRD_INVALID_FILE_FORMAT;
+            break;
         default:
             outErr = GRD_INNER_ERR;
             break;
diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/document_store_manager.cpp b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/document_store_manager.cpp
index 42afc2fc51843a394c103610a412347d0a61bc70..138c86ab99caf2062b166fd4350508b56684b05e 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/document_store_manager.cpp
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/interface/src/document_store_manager.cpp
@@ -69,7 +69,6 @@ int DocumentStoreManager::GetDocumentStore(const std::string &path, const std::s
         GLOGE("Check document db open flags failed.");
         return -E_INVALID_ARGS;
     }
-
     if (!CheckDBCreate(flags, path)) {
         GLOGE("Open db failed, file no exists.");
         return -E_INVALID_ARGS;
diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/oh_adapter/src/sqlite_utils.cpp b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/oh_adapter/src/sqlite_utils.cpp
index 76f2f887bc876eda719fba1b594dd2f7a8f6c514..328c87ec42ef3118459ccb097def620b3aed027d 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/oh_adapter/src/sqlite_utils.cpp
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/src/oh_adapter/src/sqlite_utils.cpp
@@ -38,6 +38,10 @@ int MapSqliteError(int errCode)
         case SQLITE_CANTOPEN:
         case SQLITE_READONLY:
             return -E_FILE_OPERATION;
+        case SQLITE_NOTADB:
+            return -E_INVALID_FILE_FORMAT;
+        case SQLITE_BUSY:
+            return -E_RESOURCE_BUSY;
         default:
             return -E_ERROR;
     }
diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/test/unittest/api/documentdb_api_test.cpp b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/test/unittest/api/documentdb_api_test.cpp
index 4671347bf242d312e43286b54b7bfd47354feeb8..ab4c1dfaa7856304b702e1bb01c61ceb2dac898d 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd_simple/test/unittest/api/documentdb_api_test.cpp
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd_simple/test/unittest/api/documentdb_api_test.cpp
@@ -125,6 +125,27 @@ HWTEST_F(DocumentDBApiTest, OpenDBTest003, TestSize.Level0)
     EXPECT_EQ(status, GRD_OK);
 }
 
+/**
+ * @tc.name: OpenDBTest004
+ * @tc.desc: Test open document db while db is not db file
+ * @tc.type: FUNC
+ * @tc.require:
+ * @tc.author: zhuwentao
+ */
+HWTEST_F(DocumentDBApiTest, OpenDBTest004, TestSize.Level0)
+{
+    std::string path = "./test.txt";
+    FILE *fp;
+    fp = fopen("./test.txt", "w");
+    fwrite("hello", 5, 5, fp);
+    fclose(fp);
+    GRD_DB *db = nullptr;
+    int status = GRD_DBOpen(path.c_str(), nullptr, GRD_DB_OPEN_ONLY, &db);
+    EXPECT_EQ(status, GRD_INVALID_FILE_FORMAT);
+
+    DocumentDBTestUtils::RemoveTestDbFiles(path);
+}
+
 /**
  * @tc.name: OpenDBPathTest001
  * @tc.desc: Test open document db with NULL path