Add a Morph Tag to model.
Click + in Morph Tag Panel.
Move points, edges and polygons.
Click + again.
Select original Morph in panel.
Right click/drag in Morph Panel and select Restore.
Move slider to see morph action.
and new question I find out that when I creat a morph ,and then go to send morph ,and the first one infulunced the first morph ,which can not divide each other like the photoshop's layers, and almost break my morph work on model that changed the shape many times .