diff --git a/.gitignore b/.gitignore
index a2174e7..ef1ce71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,4 +14,5 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/
 .idea/
+*.log
 output/
diff --git a/scripts/benchmark_compare.sh b/scripts/benchmark_compare.sh
new file mode 100755
index 0000000..329bf7e
--- /dev/null
+++ b/scripts/benchmark_compare.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+
+# Usage:
+#   `bash script/benchmark_compare.sh $old $new`
+# Where old/new could be branch name, tag or commit hash. For example:
+#   `bash script/benchmark_compare.sh v0.7.1 develop`
+# It will invoke the script/benchmark_$type.sh to run on the two versions of Kitex.
+# The $type variable could be "thrift", "grpc" or "pb", as is listed in the `$types` variable below.
+#
+# When it finishes, the reports are saved under `output/mmdd-HHMM-$type/`. Take `output/0927-1401-thrift`
+# as example, you can now run:
+#   `bash script/compare_result.sh output/0927-1401-thrift`
+# to get the difference of two reports.
+
+cd `dirname $0`/..
+PROJECT_ROOT=`pwd`
+
+old=$1
+new=$2
+
+if [ -z "$old" -o -z "$new" ]; then
+    echo "Usage: $0 <old> <new>"
+    echo "  old/new could be branch name, tag or commit hash."
+    echo "  e.g. $0 v1.13.1 develop"
+    exit 1
+fi
+
+types=("thrift" "grpc" "pb")
+
+function log_prefix() {
+    echo -n "[`date '+%Y-%m-%d %H:%M:%S'`] "
+}
+
+function prepare_old() {
+    go get -v github.com/cloudwego/kitex@$old
+    go mod tidy
+}
+
+function prepare_new() {
+    go get -v github.com/cloudwego/kitex@$new
+    go mod tidy
+}
+
+function compare() {
+    type=$1
+    report_dir=`date '+%m%d-%H%M'`-$type
+    mkdir -p $PROJECT_ROOT/output/$report_dir
+    log_prefix; echo "Begin comparing $type..."
+
+    # old
+    log_prefix; echo "Benchmark $type @ $old (old)"
+    export REPORT_PREFIX=$report_dir/old-
+    prepare_old
+    time bash $PROJECT_ROOT/scripts/benchmark_$type.sh
+
+    # new
+    log_prefix; echo "Benchmark $type @ $new (new)"
+    export REPORT_PREFIX=$report_dir/new-
+    prepare_new
+    time bash $PROJECT_ROOT/scripts/benchmark_$type.sh
+
+    # compare results
+    $PROJECT_ROOT/scripts/compare_report.sh $PROJECT_ROOT/output/$report_dir
+
+    log_prefix; echo "End comparing $type..."
+}
+
+for tp in ${types[@]}; do
+    compare $tp
+done
+
+
+log_prefix; echo "All benchmark finished"
diff --git a/scripts/compare_report.sh b/scripts/compare_report.sh
new file mode 100755
index 0000000..6d418d7
--- /dev/null
+++ b/scripts/compare_report.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# This tool is designed to be used with `scripts/benchmark_compare.sh` which generates reports with
+# names like `old-xxx.csv` and `new-xxx.csv` in the `output/mmdd-HHMM-$type` directory.
+# Example:
+#   `bash script/compare_result.sh output/0927-1401-thrift`
+
+cwd=`pwd`
+cd `dirname $0`/..
+PROJECT_ROOT=`pwd`
+cd "$cwd"
+
+dir=${1}
+if [ -z "$dir" ];then
+    echo "Usage: $0 <directory>"
+    echo "  directory can be absolute path or relative path"
+    exit 1
+fi
+
+for new in $dir/new*.csv; do
+    for old in $dir/old*.csv; do
+        echo python3 "scripts/reports/diff.py" "$old" "$new"
+        python3 "$PROJECT_ROOT/scripts/reports/diff.py" "$old" "$new"
+    done
+done
diff --git a/scripts/env.sh b/scripts/env.sh
index 73ff222..542de4f 100755
--- a/scripts/env.sh
+++ b/scripts/env.sh
@@ -39,7 +39,7 @@ GOEXEC=${GOEXEC:-"go"}
 GOROOT=$GOROOT
 
 USER=$(whoami)
-REPORT=${REPORT:-"$(date +%F-%H-%M)"}
+REPORT=${REPORT_PREFIX}${REPORT:-"$(date +%F-%H-%M)"}
 
 nice_cmd=''
 tee_cmd="tee -a output/${REPORT}.log"