Embodiments of the present disclosure disclose a partial image processing method, the method includes: obtaining a multi-frame picture that make up a first dynamic picture; receiving a user input operation on a specified frame picture in the multi-frame picture, and determining a delineated area based on the input operation; according to the multi-frame picture, determining a movable object of the delineated area; determining a partial area where the movable object in the multi-frame picture is located; and according to the partial area of the multi-frame picture, generating and displaying a second dynamic picture. Embodiments of the present disclosure also disclose a partial image processing device and computer storage medium.