diff --git a/cli/command/format.go b/cli/command/format.go
index 51e788cfa..7eb965713 100644
--- a/cli/command/format.go
+++ b/cli/command/format.go
@@ -24,6 +24,7 @@ package command
 
 import (
 	"fmt"
+	"github.com/opencurve/curveadm/internal/configure/topology"
 
 	"github.com/opencurve/curveadm/cli/cli"
 	comm "github.com/opencurve/curveadm/internal/common"
@@ -39,11 +40,12 @@ import (
 
 const (
 	FORMAT_EXAMPLE = `Examples:
-  $ curveadm format -f /path/to/format.yaml           # Format chunkfile pool with specified configure file
-  $ curveadm format --status -f /path/to/format.yaml  # Display formatting status
-  $ curveadm format --stop   -f /path/to/format.yaml  # Stop formatting progress
-  $ curveadm format --debug  -f /path/to/format.yaml  # Format chunkfile with debug mode
-  $ curveadm format --clean  -f /path/to/format.yaml  # clean the container left by debug mode`
+  $ curveadm format -f /path/to/format.yaml              # Format chunkfile pool with specified configure file
+  $ curveadm format -f /path/to/format.yaml --increment  # Incremental Format chunkfile pool with specified configure file
+  $ curveadm format --status -f /path/to/format.yaml     # Display formatting status
+  $ curveadm format --stop   -f /path/to/format.yaml     # Stop formatting progress
+  $ curveadm format --debug  -f /path/to/format.yaml     # Format chunkfile with debug mode
+  $ curveadm format --clean  -f /path/to/format.yaml     # clean the container left by debug mode`
 )
 
 var (
@@ -62,6 +64,11 @@ var (
 	FORMAT_CLEAN_PLAYBOOK_STEPS = []int{
 		playbook.CLEAN_FORMAT,
 	}
+
+	FORMAT_INCREMENT_PLAYBOOK_STEPS = []int{
+		playbook.STOP_SERVICE,
+		playbook.FORMAT_CHUNKFILE_POOL,
+	}
 )
 
 type formatOptions struct {
@@ -70,6 +77,7 @@ type formatOptions struct {
 	stopFormat bool
 	debug      bool
 	clean      bool
+	increment  bool
 }
 
 func checkFormatOptions(options formatOptions) error {
@@ -116,6 +124,7 @@ func NewFormatCommand(curveadm *cli.CurveAdm) *cobra.Command {
 	flags.BoolVar(&options.stopFormat, "stop", false, "Stop formatting progress")
 	flags.BoolVar(&options.debug, "debug", false, "Debug formatting progress")
 	flags.BoolVar(&options.clean, "clean", false, "Clean the Container")
+	flags.BoolVar(&options.increment, "increment", false, "Incremental formatting")
 
 	return cmd
 }
@@ -131,6 +140,7 @@ func genFormatPlaybook(curveadm *cli.CurveAdm,
 	stopFormat := options.stopFormat
 	debug := options.debug
 	clean := options.clean
+	increment := options.increment
 
 	steps := FORMAT_PLAYBOOK_STEPS
 	if showStatus {
@@ -142,6 +152,9 @@ func genFormatPlaybook(curveadm *cli.CurveAdm,
 	if clean {
 		steps = FORMAT_CLEAN_PLAYBOOK_STEPS
 	}
+	if increment {
+		steps = FORMAT_INCREMENT_PLAYBOOK_STEPS
+	}
 
 	pb := playbook.NewPlaybook(curveadm)
 	for _, step := range steps {
@@ -150,14 +163,32 @@ func genFormatPlaybook(curveadm *cli.CurveAdm,
 		if step == playbook.FORMAT_CHUNKFILE_POOL {
 			options[comm.DEBUG_MODE] = debug
 		}
-		pb.AddStep(&playbook.PlaybookStep{
-			Type:    step,
-			Configs: fcs,
-			ExecOptions: playbook.ExecOptions{
-				SilentSubBar: showStatus,
-			},
-			Options: options,
-		})
+		options[comm.FORMAT_INCREMENTAL] = increment
+		if step == playbook.STOP_SERVICE {
+			dcs, err := curveadm.ParseTopology()
+			if err != nil {
+				return nil, err
+			}
+			stopChunkServercs := curveadm.FilterDeployConfig(dcs, topology.FilterOption{
+				Role: "chunkserver",
+			})
+			if len(stopChunkServercs) == 0 {
+				continue
+			}
+			pb.AddStep(&playbook.PlaybookStep{
+				Type:    step,
+				Configs: stopChunkServercs,
+			})
+		} else {
+			pb.AddStep(&playbook.PlaybookStep{
+				Type:    step,
+				Configs: fcs,
+				ExecOptions: playbook.ExecOptions{
+					SilentSubBar: showStatus,
+				},
+				Options: options,
+			})
+		}
 	}
 	return pb, nil
 }
@@ -179,6 +210,7 @@ func runFormat(curveadm *cli.CurveAdm, options formatOptions) error {
 	var fcs []*configure.FormatConfig
 	diskRecords := curveadm.DiskRecords()
 	debug := options.debug
+	increment := options.increment
 	if debug {
 		curveadm.SetDebugLevel()
 	}
@@ -224,13 +256,21 @@ func runFormat(curveadm *cli.CurveAdm, options formatOptions) error {
 		return err
 	}
 
-	// 3) run playbook
+	// 3) confirm by user
+	if increment {
+		if pass := tuicomm.ConfirmYes(tuicomm.PromptIncrementFormat()); !pass {
+			curveadm.WriteOut(tuicomm.PromptCancelOpetation("increment format"))
+			return errno.ERR_CANCEL_OPERATION
+		}
+	}
+
+	// 4) run playbook
 	err = pb.Run()
 	if err != nil {
 		return err
 	}
 
-	// 4) print status or prompt
+	// 5) print status or prompt
 	if options.showStatus {
 		output := displayFormatStatus(curveadm)
 		curveadm.WriteOutln("")
diff --git a/internal/common/common.go b/internal/common/common.go
index d5e3ff147..df2b68c5b 100644
--- a/internal/common/common.go
+++ b/internal/common/common.go
@@ -68,6 +68,7 @@ const (
 
 	// format
 	KEY_ALL_FORMAT_STATUS = "ALL_FORMAT_STATUS"
+	FORMAT_INCREMENTAL    = "FORMAT_INCREMENTAL"
 
 	// check
 	KEY_CHECK_WITH_WEAK          = "CHECK_WITH_WEAK"
diff --git a/internal/task/scripts/format.go b/internal/task/scripts/format.go
index 826fcf137..6031d273d 100644
--- a/internal/task/scripts/format.go
+++ b/internal/task/scripts/format.go
@@ -28,12 +28,33 @@ percent=$2
 chunkfile_size=$3
 chunkfile_pool_dir=$4
 chunkfile_pool_meta_path=$5
+increment_format=$6
 
 mkdir -p $chunkfile_pool_dir
-$binary \
-  -allocatePercent=$percent \
-  -fileSize=$chunkfile_size \
-  -filePoolDir=$chunkfile_pool_dir \
-  -filePoolMetaPath=$chunkfile_pool_meta_path \
-  -fileSystemPath=$chunkfile_pool_dir
+
+if [ $increment_format == "true" ]
+then
+    rootdir=$(dirname $chunkfile_pool_dir)
+    used_percent=$(df $rootdir --output=pcent|tail -n 1|sed 's/%//'|xargs)
+    let minus=$percent-$used_percent
+    
+    if [ $minus -gt 0 ]
+    then
+      $binary \
+        -allocatePercent=$minus \
+        -fileSize=$chunkfile_size \
+        -filePoolDir=$chunkfile_pool_dir \
+        -filePoolMetaPath=$chunkfile_pool_meta_path \
+        -fileSystemPath=$chunkfile_pool_dir
+    fi  
+else
+    $binary \
+      -allocatePercent=$percent \
+      -fileSize=$chunkfile_size \
+      -filePoolDir=$chunkfile_pool_dir \
+      -filePoolMetaPath=$chunkfile_pool_meta_path \
+      -fileSystemPath=$chunkfile_pool_dir
+fi
+
+
 `
diff --git a/internal/task/task/bs/format.go b/internal/task/task/bs/format.go
index 5d963a431..0049477e8 100644
--- a/internal/task/task/bs/format.go
+++ b/internal/task/task/bs/format.go
@@ -24,12 +24,12 @@ package bs
 
 import (
 	"fmt"
+	comm "github.com/opencurve/curveadm/internal/common"
 	"regexp"
 	"strings"
 	"time"
 
 	"github.com/opencurve/curveadm/cli/cli"
-	comm "github.com/opencurve/curveadm/internal/common"
 	"github.com/opencurve/curveadm/internal/configure"
 	"github.com/opencurve/curveadm/internal/configure/disks"
 	os "github.com/opencurve/curveadm/internal/configure/os"
@@ -246,8 +246,9 @@ func NewFormatChunkfilePoolTask(curveadm *cli.CurveAdm, fc *configure.FormatConf
 	chunkfilePoolRootDir := layout.ChunkfilePoolRootDir
 	formatScript := scripts.SCRIPT_FORMAT
 	formatScriptPath := fmt.Sprintf("%s/format.sh", layout.ToolsBinDir)
-	formatCommand := fmt.Sprintf("%s %s %d %d %s %s", formatScriptPath, layout.FormatBinaryPath,
-		usagePercent, DEFAULT_CHUNKFILE_SIZE, layout.ChunkfilePoolDir, layout.ChunkfilePoolMetaPath)
+	increment := curveadm.MemStorage().Get(comm.FORMAT_INCREMENTAL).(bool)
+	formatCommand := fmt.Sprintf("%s %s %d %d %s %s %t", formatScriptPath, layout.FormatBinaryPath,
+		usagePercent, DEFAULT_CHUNKFILE_SIZE, layout.ChunkfilePoolDir, layout.ChunkfilePoolMetaPath, increment)
 	debug := curveadm.MemStorage().Get(comm.DEBUG_MODE).(bool)
 
 	// 1: skip if formating container exist
@@ -279,10 +280,12 @@ func NewFormatChunkfilePoolTask(curveadm *cli.CurveAdm, fc *configure.FormatConf
 		Paths:       []string{mountPoint},
 		ExecOptions: curveadm.ExecOptions(),
 	})
-	t.AddStep(&step.CreateFilesystem{ // mkfs.ext4 MOUNT_POINT
-		Device:      device,
-		ExecOptions: curveadm.ExecOptions(),
-	})
+	if !increment {
+		t.AddStep(&step.CreateFilesystem{ // mkfs.ext4 MOUNT_POINT
+			Device:      device,
+			ExecOptions: curveadm.ExecOptions(),
+		})
+	}
 	t.AddStep(&step.MountFilesystem{
 		Source:      device,
 		Directory:   mountPoint,
diff --git a/internal/tui/common/prompt.go b/internal/tui/common/prompt.go
index ddeadefcd..52e8b1588 100644
--- a/internal/tui/common/prompt.go
+++ b/internal/tui/common/prompt.go
@@ -190,6 +190,12 @@ func PromptCollectService() string {
 	return prompt.Build()
 }
 
+func PromptIncrementFormat() string {
+	prompt := NewPrompt(color.YellowString(PROMPT_WARNING) + DEFAULT_CONFIRM_PROMPT)
+	prompt.data["warning"] = "WARNING: increment format will stop chunkserver service"
+	return prompt.Build()
+}
+
 func prettyClue(clue string) string {
 	items := strings.Split(clue, "\n")
 	for {