diff --git a/cpp/src/core/knowhere/knowhere/common/Log.h b/cpp/src/core/knowhere/knowhere/common/Log.h
new file mode 100644
index 0000000000..0d99c624ab
--- /dev/null
+++ b/cpp/src/core/knowhere/knowhere/common/Log.h
@@ -0,0 +1,35 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+
+#pragma once
+
+#include "utils/easylogging++.h"
+
+namespace zilliz {
+namespace knowhere {
+#define KNOWHERE_DOMAIN_NAME "[KNOWHERE] "
+#define KNOWHERE_ERROR_TEXT "KNOWHERE Error:"
+
+#define KNOWHERE_LOG_TRACE LOG(TRACE) << KNOWHERE_DOMAIN_NAME
+#define KNOWHERE_LOG_DEBUG LOG(DEBUG) << KNOWHERE_DOMAIN_NAME
+#define KNOWHERE_LOG_INFO LOG(INFO) << KNOWHERE_DOMAIN_NAME
+#define KNOWHERE_LOG_WARNING LOG(WARNING) << KNOWHERE_DOMAIN_NAME
+#define KNOWHERE_LOG_ERROR LOG(ERROR) << KNOWHERE_DOMAIN_NAME
+#define KNOWHERE_LOG_FATAL LOG(FATAL) << KNOWHERE_DOMAIN_NAME
+} // namespace knowhere
+} // namespace zilliz
\ No newline at end of file
diff --git a/cpp/src/core/knowhere/knowhere/common/exception.cpp b/cpp/src/core/knowhere/knowhere/common/exception.cpp
index fcf3886d9b..eb19e21bb0 100644
--- a/cpp/src/core/knowhere/knowhere/common/exception.cpp
+++ b/cpp/src/core/knowhere/knowhere/common/exception.cpp
@@ -19,6 +19,7 @@
 #include <cstdio>
 
 #include "exception.h"
+#include "Log.h"
 
 namespace zilliz {
 namespace knowhere {
diff --git a/cpp/src/core/test/CMakeLists.txt b/cpp/src/core/test/CMakeLists.txt
index b62fd6cda3..cdd500ea72 100644
--- a/cpp/src/core/test/CMakeLists.txt
+++ b/cpp/src/core/test/CMakeLists.txt
@@ -22,6 +22,9 @@ set(basic_libs
         gomp gfortran pthread
         )
 
+set(util_srcs
+        ${MILVUS_ENGINE_SRC}/utils/easylogging++.cc
+        )
 
 #<IVF-TEST>
 set(ivf_srcs
@@ -36,7 +39,7 @@ set(ivf_srcs
         utils.cpp
         )
 if(NOT TARGET test_ivf)
-    add_executable(test_ivf test_ivf.cpp ${ivf_srcs})
+    add_executable(test_ivf test_ivf.cpp ${ivf_srcs} ${util_srcs})
 endif()
 target_link_libraries(test_ivf ${depend_libs} ${unittest_libs} ${basic_libs})
 
@@ -53,7 +56,7 @@ set(idmap_srcs
         utils.cpp
         )
 if(NOT TARGET test_idmap)
-    add_executable(test_idmap test_idmap.cpp ${idmap_srcs})
+    add_executable(test_idmap test_idmap.cpp ${idmap_srcs} ${util_srcs})
 endif()
 target_link_libraries(test_idmap ${depend_libs} ${unittest_libs} ${basic_libs})
 
@@ -70,7 +73,7 @@ set(kdt_srcs
         utils.cpp
         )
 if(NOT TARGET test_kdt)
-    add_executable(test_kdt test_kdt.cpp ${kdt_srcs})
+    add_executable(test_kdt test_kdt.cpp ${kdt_srcs} ${util_srcs})
 endif()
 target_link_libraries(test_kdt
         SPTAGLibStatic
diff --git a/cpp/src/core/test/test_nsg/CMakeLists.txt b/cpp/src/core/test/test_nsg/CMakeLists.txt
index 9ee8e76525..17b62cd40d 100644
--- a/cpp/src/core/test/test_nsg/CMakeLists.txt
+++ b/cpp/src/core/test/test_nsg/CMakeLists.txt
@@ -34,6 +34,7 @@ if(NOT TARGET test_nsg)
             test_nsg.cpp
             ${interface_src}
             ${nsg_src}
+            ${util_srcs}
             )
 endif()
 
diff --git a/cpp/src/core/test/utils.cpp b/cpp/src/core/test/utils.cpp
index 97f4600ca7..4e240f5f74 100644
--- a/cpp/src/core/test/utils.cpp
+++ b/cpp/src/core/test/utils.cpp
@@ -18,6 +18,15 @@
 
 #include "utils.h"
 
+INITIALIZE_EASYLOGGINGPP
+
+void InitLog() {
+    el::Configurations defaultConf;
+    defaultConf.setToDefault();
+    defaultConf.set(el::Level::Debug,
+                    el::ConfigurationType::Format, "[%thread-%datetime-%level]: %msg (%fbase:%line)");
+    el::Loggers::reconfigureLogger("default", defaultConf);
+}
 
 void DataGen::Init_with_default() {
     Generate(dim, nb, nq);
diff --git a/cpp/src/core/test/utils.h b/cpp/src/core/test/utils.h
index b9db01de51..df7f11d689 100644
--- a/cpp/src/core/test/utils.h
+++ b/cpp/src/core/test/utils.h
@@ -24,6 +24,7 @@
 #include <fstream>
 
 #include "knowhere/adapter/structure.h"
+#include "knowhere/common/Log.h"
 
 class DataGen  {
  protected:
@@ -65,6 +66,8 @@ extern void GenBase(const int64_t &dim,
                     float *xb,
                     int64_t *ids);
 
+extern void InitLog();
+
 zilliz::knowhere::DatasetPtr
 generate_dataset(int64_t nb, int64_t dim, float *xb, long *ids);