Abstract: A method for controlling an electronic device by handwriting includes the steps: (a) receiving a handwritten pattern for recognition; (b) analyzing the handwritten pattern to divide the handwritten pattern into a primary feature and a secondary feature; (c) searching the storage device for a second predetermined pattern having the primary feature; and (d) comparing the second predetermined pattern with respect to the secondary feature in order to select a third predetermined pattern, in which, the secondary feature matches the handwritten pattern; (e) executing an operation function of the electronic device represented by the third predetermined pattern.