diff --git a/cmd/cmd.go b/cmd/cmd.go
index 382ddaa..6218d13 100644
--- a/cmd/cmd.go
+++ b/cmd/cmd.go
@@ -1,10 +1,12 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
 	"github.com/chainreactors/logs"
 	"github.com/chainreactors/spray/internal"
 	"github.com/jessevdk/go-flags"
+	"time"
 )
 
 func Spray() {
@@ -24,10 +26,13 @@ func Spray() {
 		return
 	}
 
-	err = runner.Prepare()
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(runner.Deadline)*time.Second)
+
+	err = runner.Prepare(ctx)
 	if err != nil {
 		logs.Log.Errorf(err.Error())
 		return
 	}
-	runner.Run()
+
+	runner.Run(ctx)
 }
diff --git a/internal/option.go b/internal/option.go
index a309fe7..33cecd3 100644
--- a/internal/option.go
+++ b/internal/option.go
@@ -37,7 +37,7 @@ type InputOptions struct {
 }
 
 type OutputOptions struct {
-	Matches     map[string]string `short:"m" long:"match" description:"String, "`
+	Matches     map[string]string `long:"match" description:"String, "`
 	Filters     map[string]string `long:"filter" description:"String, "`
 	Extracts    []string          `long:"extract" description:"String, "`
 	OutputFile  string            `short:"f" description:"String, output filename"`
@@ -74,6 +74,10 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 		Mod:      opt.Mod,
 		Timeout:  opt.Timeout,
 		Probes:   strings.Split(opt.OutputProbe, ","),
+		Deadline: opt.Deadline,
+		Offset:   opt.Offset,
+		Limit:    opt.Limit,
+		URLList:  make(chan string),
 	}
 
 	err = pkg.LoadTemplates()
@@ -91,10 +95,11 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 	}
 
 	// prepare url
+	var urls []string
 	var file *os.File
 	urlfrom := opt.URLFile
 	if opt.URL != "" {
-		r.URLList = append(r.URLList, opt.URL)
+		urls = append(urls, opt.URL)
 		urlfrom = "cmd"
 	} else if opt.URLFile != "" {
 		file, err = os.Open(opt.URLFile)
@@ -111,13 +116,19 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 		if err != nil {
 			return nil, err
 		}
-		r.URLList = strings.Split(string(content), "\n")
+		urls = strings.Split(string(content), "\n")
 	}
 
-	for i, u := range r.URLList {
-		r.URLList[i] = strings.TrimSpace(u)
+	for i, u := range urls {
+		urls[i] = strings.TrimSpace(u)
 	}
-	logs.Log.Importantf("load %d urls from %s", len(r.URLList), urlfrom)
+	logs.Log.Importantf("load %d urls from %s", len(urls), urlfrom)
+	go func() {
+		for _, u := range urls {
+			r.URLList <- u
+		}
+		close(r.URLList)
+	}()
 
 	// prepare word
 	dicts := make([][]string, len(opt.Dictionaries))
@@ -134,10 +145,10 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 		for i, _ := range dicts {
 			opt.Word += strconv.Itoa(i)
 		}
-		opt.Word = "}"
+		opt.Word += "}"
 	}
 
-	if opt.Suffixes == nil {
+	if opt.Suffixes != nil {
 		dicts = append(dicts, opt.Suffixes)
 		opt.Word += fmt.Sprintf("{?%d}", len(dicts)-1)
 	}
@@ -156,6 +167,9 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 	if err != nil {
 		return nil, err
 	}
+	if r.Limit == 0 {
+		r.Limit = len(r.Wordlist)
+	}
 
 	if opt.Uppercase {
 		r.Fns = append(r.Fns, strings.ToUpper)
@@ -184,7 +198,7 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 		})
 	}
 
-	if opt.Replaces != nil {
+	if len(opt.Replaces) > 0 {
 		r.Fns = append(r.Fns, func(s string) string {
 			for k, v := range opt.Replaces {
 				s = strings.Replace(s, k, v, -1)
diff --git a/internal/runner.go b/internal/runner.go
index 1d28afe..f99a4de 100644
--- a/internal/runner.go
+++ b/internal/runner.go
@@ -15,7 +15,7 @@ var BlackStatus = []int{400, 404, 410}
 var FuzzyStatus = []int{403, 500, 501, 502, 503}
 
 type Runner struct {
-	URLList  []string
+	URLList  chan string
 	Wordlist []string
 	Headers  http.Header
 	Fns      []func(string) string
@@ -30,9 +30,10 @@ type Runner struct {
 	Progress *uiprogress.Progress
 	Offset   int
 	Limit    int
+	Deadline int
 }
 
-func (r *Runner) Prepare() error {
+func (r *Runner) Prepare(ctx context.Context) error {
 	var err error
 	CheckStatusCode = func(status int) bool {
 		for _, black := range BlackStatus {
@@ -44,7 +45,6 @@ func (r *Runner) Prepare() error {
 	}
 
 	r.OutputCh = make(chan *baseline, 100)
-	ctx := context.Background()
 
 	r.Pools, err = ants.NewPoolWithFunc(r.PoolSize, func(i interface{}) {
 		u := i.(string)
@@ -75,7 +75,7 @@ func (r *Runner) Prepare() error {
 			logs.Log.Error(err.Error())
 			return
 		}
-		// todo pool 总超时时间
+
 		pool.Run(ctx, r.Offset, r.Limit)
 		r.poolwg.Done()
 	})
@@ -87,12 +87,22 @@ func (r *Runner) Prepare() error {
 	return nil
 }
 
-func (r *Runner) Run() {
-	// todo pool 结束与并发控制
-	for _, u := range r.URLList {
-		r.poolwg.Add(1)
-		r.Pools.Invoke(u)
+func (r *Runner) Run(ctx context.Context) {
+Loop:
+	for {
+		select {
+		case <-ctx.Done():
+			logs.Log.Error("cancel with deadline")
+			break Loop
+		case u, ok := <-r.URLList:
+			if !ok {
+				break Loop
+			}
+			r.poolwg.Add(1)
+			r.Pools.Invoke(u)
+		}
 	}
+
 	r.poolwg.Wait()
 	for {
 		if len(r.OutputCh) == 0 {