diff --git a/ydb/core/formats/arrow/converter.cpp b/ydb/core/formats/arrow/converter.cpp
index d832275dcf5d..58bcc0f8aafe 100644
--- a/ydb/core/formats/arrow/converter.cpp
+++ b/ydb/core/formats/arrow/converter.cpp
@@ -1,9 +1,11 @@
 #include "converter.h"
 #include "switch_type.h"
 
+#include <ydb/library/binary_json/read.h>
 #include <ydb/library/binary_json/write.h>
 #include <ydb/library/dynumber/dynumber.h>
 
+#include <util/generic/set.h>
 #include <util/memory/pool.h>
 #include <library/cpp/containers/stack_vector/stack_vec.h>
 
@@ -47,16 +49,21 @@ static bool ConvertData(TCell& cell, const NScheme::TTypeInfo& colType, TMemoryP
 }
 
 static bool ConvertColumn(const NScheme::TTypeInfo colType, std::shared_ptr<arrow::Array>& column, std::shared_ptr<arrow::Field>& field) {
-    if (colType.GetTypeId() == NScheme::NTypeIds::Decimal) {
+    switch (colType.GetTypeId()) {
+    case NScheme::NTypeIds::Decimal:
         return false;
+    case NScheme::NTypeIds::JsonDocument: {
+        const static TSet<arrow::Type::type> jsonDocArrowTypes{ arrow::Type::BINARY, arrow::Type::STRING };
+        if (!jsonDocArrowTypes.contains(column->type()->id())) {
+            return false;
+        }
+        break;
     }
-
-    if ((colType.GetTypeId() == NScheme::NTypeIds::JsonDocument) &&
-        (column->type()->id() == arrow::Type::BINARY || column->type()->id() == arrow::Type::STRING))
-    {
-        ;
-    } else if (column->type()->id() != arrow::Type::BINARY) {
-        return false;
+    default:
+        if (column->type()->id() != arrow::Type::BINARY) {
+            return false;
+        }
+        break;
     }
 
     auto& binaryArray = static_cast<arrow::BinaryArray&>(*column);
@@ -81,9 +88,16 @@ static bool ConvertColumn(const NScheme::TTypeInfo colType, std::shared_ptr<arro
                     Y_ABORT_UNLESS(builder.AppendNull().ok());
                     continue;
                 }
-                const auto binaryJson = NBinaryJson::SerializeToBinaryJson(TStringBuf(value.data(), value.size()));
-                if (!binaryJson.Defined() || !builder.Append(binaryJson->Data(), binaryJson->Size()).ok()) {
-                    return false;
+                const TStringBuf valueBuf(value.data(), value.size());
+                if (NBinaryJson::IsValidBinaryJson(valueBuf)) {
+                    if (!builder.Append(value).ok()) {
+                        return false;
+                    }
+                } else {
+                    const auto binaryJson = NBinaryJson::SerializeToBinaryJson(valueBuf);
+                    if (!binaryJson.Defined() || !builder.Append(binaryJson->Data(), binaryJson->Size()).ok()) {
+                        return false;
+                    }
                 }
             }
         }
diff --git a/ydb/core/kqp/ut/scheme/kqp_scheme_ut.cpp b/ydb/core/kqp/ut/scheme/kqp_scheme_ut.cpp
index bef64ef18078..0f30a84aca39 100644
--- a/ydb/core/kqp/ut/scheme/kqp_scheme_ut.cpp
+++ b/ydb/core/kqp/ut/scheme/kqp_scheme_ut.cpp
@@ -9,6 +9,7 @@
 #include <ydb/core/testlib/common_helper.h>
 #include <ydb/core/formats/arrow/serializer/full.h>
 #include <ydb/library/uuid/uuid.h>
+#include <ydb/library/binary_json/write.h>
 
 #include <library/cpp/threading/local_executor/local_executor.h>
 
@@ -5925,8 +5926,39 @@ Y_UNIT_TEST_SUITE(KqpOlapTypes) {
             UNIT_ASSERT_VALUES_EQUAL_C(result.GetStatus(), EStatus::SCHEME_ERROR, result.GetIssues().ToString());
         }
     }
-}
 
+    Y_UNIT_TEST(JsonImport) {
+        TKikimrSettings runnerSettings;
+        runnerSettings.WithSampleTables = false;
+
+        TTestHelper testHelper(runnerSettings);
+
+        TVector<TTestHelper::TColumnSchema> schema = {
+            TTestHelper::TColumnSchema().SetName("id").SetType(NScheme::NTypeIds::Int64).SetNullable(false),
+            TTestHelper::TColumnSchema().SetName("json").SetType(NScheme::NTypeIds::Json).SetNullable(true),
+            TTestHelper::TColumnSchema().SetName("json_doc").SetType(NScheme::NTypeIds::JsonDocument).SetNullable(true),
+        };
+
+        TTestHelper::TColumnTable testTable;
+        testTable.SetName("/Root/ColumnTableTest").SetPrimaryKey({ "id" }).SetSharding({ "id" }).SetSchema(schema);
+        testHelper.CreateTable(testTable);
+        std::string jsonString = R"({"col1": "val1", "obj": {"obj_col2_int": 16}})";
+        auto maybeJsonDoc = NBinaryJson::SerializeToBinaryJson(jsonString);
+        Y_ABORT_UNLESS(maybeJsonDoc.Defined());
+        const std::string jsonBin(maybeJsonDoc->Data(), maybeJsonDoc->Size());
+        {
+            TTestHelper::TUpdatesBuilder tableInserter(testTable.GetArrowSchema(schema));
+            tableInserter.AddRow().Add(1).AddNull().Add(jsonString);
+            tableInserter.AddRow().Add(2).Add(jsonString).Add(jsonBin);
+            testHelper.BulkUpsert(testTable, tableInserter);
+        }
+        {
+            TTestHelper::TUpdatesBuilder tableInserter(testTable.GetArrowSchema(schema));
+            tableInserter.AddRow().Add(3).Add(jsonBin).AddNull();
+            testHelper.BulkUpsert(testTable, tableInserter, Ydb::StatusIds::SCHEME_ERROR);
+        }
+    }
+}
 
 } // namespace NKqp
 } // namespace NKikimr