diff --git a/cmd/lotus-worker/tasks.go b/cmd/lotus-worker/tasks.go
index 7b4462073..af9a9af70 100644
--- a/cmd/lotus-worker/tasks.go
+++ b/cmd/lotus-worker/tasks.go
@@ -45,32 +45,52 @@ var tasksEnableCmd = &cli.Command{
 	Name:      "enable",
 	Usage:     "Enable a task type",
 	ArgsUsage: "[" + settableStr + "]",
-	Action:    taskAction(api.Worker.TaskEnable),
+	Flags: []cli.Flag{
+		&cli.BoolFlag{
+			Name:  "all",
+			Usage: "Enable all task types",
+		},
+	},
+	Action: taskAction(api.Worker.TaskEnable),
 }
 
 var tasksDisableCmd = &cli.Command{
 	Name:      "disable",
 	Usage:     "Disable a task type",
 	ArgsUsage: "[" + settableStr + "]",
-	Action:    taskAction(api.Worker.TaskDisable),
+	Flags: []cli.Flag{
+		&cli.BoolFlag{
+			Name:  "all",
+			Usage: "Disable all task types",
+		},
+	},
+	Action: taskAction(api.Worker.TaskDisable),
 }
 
 func taskAction(tf func(a api.Worker, ctx context.Context, tt sealtasks.TaskType) error) func(cctx *cli.Context) error {
 	return func(cctx *cli.Context) error {
-		if cctx.NArg() != 1 {
-			return xerrors.Errorf("expected 1 argument")
+		allFlag := cctx.Bool("all")
+
+		if cctx.NArg() == 1 && allFlag {
+			return xerrors.Errorf("Cannot use --all flag with task type argument")
+		}
+
+		if cctx.NArg() == 0 && !allFlag {
+			return xerrors.Errorf("Expected 1 argument or use --all flag")
 		}
 
 		var tt sealtasks.TaskType
-		for taskType := range allowSetting {
-			if taskType.Short() == cctx.Args().First() {
-				tt = taskType
-				break
+		if cctx.NArg() == 1 {
+			for taskType := range allowSetting {
+				if taskType.Short() == cctx.Args().First() {
+					tt = taskType
+					break
+				}
 			}
-		}
 
-		if tt == "" {
-			return xerrors.Errorf("unknown task type '%s'", cctx.Args().First())
+			if tt == "" {
+				return xerrors.Errorf("unknown task type '%s'", cctx.Args().First())
+			}
 		}
 
 		api, closer, err := lcli.GetWorkerAPI(cctx)
@@ -81,6 +101,15 @@ func taskAction(tf func(a api.Worker, ctx context.Context, tt sealtasks.TaskType
 
 		ctx := lcli.ReqContext(cctx)
 
+		if allFlag {
+			for taskType := range allowSetting {
+				if err := tf(api, ctx, taskType); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+
 		return tf(api, ctx, tt)
 	}
 }