diff --git a/rm-docker-image/.gitignore b/rm-docker-image/.gitignore
new file mode 100644
index 0000000..600d2d3
--- /dev/null
+++ b/rm-docker-image/.gitignore
@@ -0,0 +1 @@
+.vscode
\ No newline at end of file
diff --git a/rm-docker-image/README.md b/rm-docker-image/README.md
new file mode 100644
index 0000000..a6dc5bd
--- /dev/null
+++ b/rm-docker-image/README.md
@@ -0,0 +1,35 @@
+简介
+---
+
+### 做什么的
+```
+累计总量images磁盘>100G 时，删除7天以上的镜像。
+如果删除后仍然超过100G 则天数逐渐递减删除 直至小于100G
+```
+
+### 大致流程
+```
+通过 docker system df 获取images的大小
+
+再通过 docker images --format "{{.ID}}\t{{.CreateAt}}" 获取所有的id 以及镜像的创建时间
+
+最后通过 docker rmi IDS... 删除符合条件的镜像
+```
+
+### 使用说明
+```
+go run main.go -d 7 -s 100
+// -d 天数  默认7天
+// -s images 总和 GB  默认100GB
+// image总和 大于100G时，删除超过7天的image, 如果还是超过100G 则天数递减，直至小于100G 或 小于0天
+```
+
+### 为什么 image 没有被删除掉
+```
+本程序没有做docker rm -f 强制删除操作
+
+原因有二：
+1、有些image 的容器还在使用中
+2、有些image 做了tag ,image ID 重复，导致无法删除（本程序未考虑该情况，因为集群主要是pull image 不做tag）
+、
+```
\ No newline at end of file
diff --git a/rm-docker-image/funs/funs.go b/rm-docker-image/funs/funs.go
new file mode 100644
index 0000000..bc772b1
--- /dev/null
+++ b/rm-docker-image/funs/funs.go
@@ -0,0 +1,27 @@
+package funs
+
+import (
+	"context"
+	"errors"
+	"os/exec"
+	"time"
+)
+
+var timeout = 10 * time.Second
+
+// Exec 执行 command
+func Exec(name string, arg ...string) (string, error) {
+	ctxt, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel() //releases resources if slowOperation completes before timeout elapses
+	cmd := exec.CommandContext(ctxt, name, arg...)
+	//当经过Timeout时间后，程序依然没有运行完，则会杀掉进程，ctxt也会有err信息
+	if out, err := cmd.Output(); err != nil {
+		//检测报错是否是因为超时引起的
+		if ctxt.Err() != nil && ctxt.Err() == context.DeadlineExceeded {
+			return "", errors.New("command timeout")
+		}
+		return string(out), err
+	} else {
+		return string(out), nil
+	}
+}
diff --git a/rm-docker-image/funs/funs_test.go b/rm-docker-image/funs/funs_test.go
new file mode 100644
index 0000000..307db5f
--- /dev/null
+++ b/rm-docker-image/funs/funs_test.go
@@ -0,0 +1,10 @@
+package funs
+
+import "testing"
+
+func TestExec(t *testing.T) {
+	_, err := Exec("ls")
+	if err != nil {
+		t.Error("exec err:", err)
+	}
+}
diff --git a/rm-docker-image/image/image.go b/rm-docker-image/image/image.go
new file mode 100644
index 0000000..1c5471b
--- /dev/null
+++ b/rm-docker-image/image/image.go
@@ -0,0 +1,141 @@
+package image
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/Ankr-network/dccn-tools/rm-docker-image/funs"
+)
+
+// DelImage 删除镜像的条件
+type DelImage struct {
+	date int     // 删除大于多少天的
+	size float64 // 超过 size 继续删除
+}
+
+// Run 执行删除 条件达到的镜像
+func (i *DelImage) Run() {
+	for {
+		if i.date < 0 {
+			fmt.Println("DelImage.date 已小于0天，无可再删了的")
+			return
+		}
+		if i.getSize() > i.size {
+			i.delete()
+			i.date--
+		} else {
+			return
+		}
+		time.Sleep(time.Second)
+	}
+}
+
+func (i *DelImage) getSize() float64 {
+	str, err := funs.Exec("docker", "system", "df")
+	if err != nil {
+		fmt.Printf("docker system df 获取出错：%s\n", err)
+		return 0
+	}
+	bf := bufio.NewReader(strings.NewReader(str))
+	bf.ReadString('\n')
+	imageStr, err := bf.ReadString('\n')
+
+	if err != nil {
+		fmt.Printf("readString 没有获取数据，err:%s\n", err)
+		return 0
+	}
+	reclaimable := strings.Trim(imageStr, "\r\n ")
+	reclaimables := strings.Fields(reclaimable)
+	b := strings.Contains(reclaimables[3], "B")
+	var (
+		sizenum float64
+		numtype string
+	)
+	if b {
+		str := reclaimables[3]
+		strbyte := str[:len(reclaimables[3])-2]
+		sizenum, _ = strconv.ParseFloat(string(strbyte), 64)
+		numtype = string(str[len(reclaimables[3])-2:])
+	} else {
+		sizenum, _ = strconv.ParseFloat(reclaimables[3], 64)
+		numtype = reclaimables[4]
+	}
+
+	switch numtype {
+	case "MB":
+		return sizenum / 1024
+	case "GB":
+		return sizenum
+	case "KB":
+		return sizenum / 1024 / 1024
+	case "TB":
+		return sizenum * 1024
+	default:
+		fmt.Printf("未识别到images所占的内存总量：%s   %s\n", reclaimables[3], reclaimables[4])
+	}
+	return 0
+}
+
+func (i *DelImage) delete() {
+	images := make(images, 0)
+	images.getCreated()
+	var ids []string
+	ids = append(ids, "rmi")
+	for _, v := range images {
+		if v.created >= i.date {
+			ids = append(ids, v.ID)
+		}
+	}
+	if len(ids) == 1 {
+		fmt.Printf("delete %d day: 无images可删 \n", i.date)
+		return
+	}
+
+	funs.Exec("docker", ids...)
+
+	fmt.Printf("delete %d day: docker %v \n", i.date, strings.Join(ids, " "))
+}
+
+// CreateDelImage 创建镜像
+func CreateDelImage(date int, size float64) DelImage {
+	return DelImage{date, size}
+}
+
+type image struct {
+	ID      string
+	created int // 创建镜像的天数
+}
+
+// image 应该有 delete getSize 等功能呢
+
+type images []image
+
+// images 应该有获取总size,总删除，筛选的功能
+func (i *images) getCreated() {
+	data, err := funs.Exec("docker", "images", "--format", `{{.ID}}\t{{.CreatedAt}}`)
+	if err != nil {
+		fmt.Printf("docker images --format 获取数据出错：%s\n", err)
+		return
+	}
+	bf := bufio.NewReader(strings.NewReader(data))
+	now := time.Now()
+	timeLayout := "2006-01-02 15:04:05" //转化所需模板
+	for {
+		str, err := bf.ReadString('\n')
+
+		if err != nil {
+			if err == io.EOF { //文件已经结束
+				break
+			}
+			fmt.Println("getCreated readeSteing err = ", err)
+		}
+		strs := strings.Fields(str)
+		tmp, _ := time.Parse(timeLayout, strs[1]+" "+strs[2])
+		sub := now.Sub(tmp)
+		*i = append(*i, image{strs[0], int(sub.Hours() / 24)})
+	}
+}
diff --git a/rm-docker-image/main.go b/rm-docker-image/main.go
new file mode 100644
index 0000000..d10cddc
--- /dev/null
+++ b/rm-docker-image/main.go
@@ -0,0 +1,38 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"time"
+
+	"github.com/Ankr-network/dccn-tools/rm-docker-image/image"
+)
+
+var (
+	h    bool
+	date int
+	size float64
+)
+
+func init() {
+	flag.BoolVar(&h, "h", false, "帮助文档")
+	flag.IntVar(&date, "d", 7, "大于多少天的将会被删除")
+	flag.Float64Var(&size, "s", 100, "大于多少GB的将会被删除")
+	flag.Parse()
+}
+
+func main() {
+	if h {
+		flag.Usage()
+		return
+	}
+	if date < 0 || size < 0 {
+		fmt.Println("请填写正确的信息，date >= 0 && size >= 0")
+		return
+	}
+	fmt.Printf("------- %s start -------\n", time.Now().Format("2006-01-02"))
+	defer fmt.Printf("------- %s end -------\n\n", time.Now().Format("2006-01-02"))
+
+	dic := image.CreateDelImage(date, size)
+	dic.Run()
+}