diff --git a/shell/docker_hub_speed_test.sh b/shell/docker_hub_speed_test.sh
new file mode 100644
index 0000000..cda98ee
--- /dev/null
+++ b/shell/docker_hub_speed_test.sh
@@ -0,0 +1,86 @@
+#!/bin/env bash
+# 
+# lework
+# Docker Hub mirror site speed test.
+
+
+######################################################################################################
+# environment configuration
+######################################################################################################
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[0;33m'
+BLUE='\033[0;36m'
+PLAIN='\033[0m'
+
+image_name="library/centos"
+image_tag="latest"
+
+declare -A mirrors
+mirrors=(
+  [azure]="http://dockerhub.azk8s.cn"
+  [tencent]="https://mirror.ccs.tencentyun.com"
+  [daocloud]="http://f1361db2.m.daocloud.io"
+  [netease]="http://hub-mirror.c.163.com"
+  [ustc]="https://docker.mirrors.ustc.edu.cn"
+  [aliyun]="https://2h3po24q.mirror.aliyuncs.com"
+  [qiniu]="https://reg-mirror.qiniu.com"
+)
+
+######################################################################################################
+# function
+######################################################################################################
+
+speed_test() {
+    local output=$(LANG=C wget --header="$3" -4O /dev/null -T300 "$1" 2>&1)
+    local speed=$(printf '%s' "$output" | awk '/\/dev\/null/ {speed=$3 $4} END {gsub(/\(|\)/,"",speed); print speed}')
+    local ipaddress=$(printf '%s' "$output" | awk -F'|' '/Connecting to .*\|([^\|]+)\|/ {print $2}'| tail -1)
+    local time=$(printf '%s' "$output" | awk -F= '/100% / {print $2}')
+    local size=$(printf '%s' "$output" | awk '/Length:/ {s=$3} END {gsub(/\(|\)/,"",s); print s}')
+    printf "${YELLOW}%-14s${GREEN}%-20s${BLUE}%-14s${PLAIN}%-20s${RED}%-14s${PLAIN}\n" "$2" "${ipaddress}" "${size}" "${time}" "${speed}" 
+}
+
+
+######################################################################################################
+# main 
+######################################################################################################
+
+if  [ ! -e '/usr/bin/wget' ]; then
+    echo "Error: wget command not found. You must be install wget command at first."
+    exit 1
+fi
+
+if  [ ! -e '/usr/bin/curl' ]; then
+    echo "Error: curl command not found. You must be install curl command at first."
+    exit 1
+fi
+
+clear
+echo -e "\n\nDocker Hub mirror site speed test"
+
+echo -e "\n[Mirror Site]"
+for mirror in ${!mirrors[*]}; do
+printf "${PLAIN}%-14s${GREEN}%-20s${PLAIN}\n" ${mirror} ":  ${mirrors[$mirror]}"
+done
+printf "${PLAIN}%-14s${GREEN}%-20s${PLAIN}\n" "docker" ":  https://registry-1.docker.io"
+
+echo -e "\n[Test]"
+echo -e "Test Image        : ${YELLOW}${image_name}:${image_tag}${PLAIN}"
+
+docker_token=$(curl -fsSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:${image_name}:pull"  | awk '-F"' '{print $4}')
+image_manifests=$(curl -fsSL -H "Authorization: Bearer ${docker_token}" "https://registry-1.docker.io/v2/${image_name}/manifests/${image_tag}" | awk -F'"' '/"blobSum":/ {print $4}')
+image_layer=$( echo $image_manifests | tr ' ' '\n' | sort -u| head -1 )
+echo -e "Download layer    : ${YELLOW}${image_layer}${PLAIN}\n"
+
+printf "%-14s%-20s%-14s%-20s%-14s\n" "Site Name" "IPv4 address" "File Size" "Download Time" "Download Speed"
+for mirror in ${!mirrors[*]}; do
+  if [ "${#image_layer}" == "0" ]; then
+    image_manifests=$(curl -s "${mirror}/v2/library/${image_name}/manifests/${image_tag}" | awk -F'"' '/"blobSum":/ {print $4}')
+    image_layer=$( echo $resp | tr ' ' '\n' | sort -u | head -1)    
+  fi
+  speed_test "${mirrors[$mirror]}/v2/${image_name}/blobs/${image_layer}" ${mirror}
+done
+speed_test "https://registry-1.docker.io/v2/${image_name}/blobs/${image_layer}" "docker" "Authorization: Bearer $docker_token"
+echo