Electronic signature device and electronic signature method thereof

The invention discloses an electronic signature device and an electronic signature method thereof. The electronic signature device comprises a touch screen, an image collection module and a processor,wherein the touch screen is used for displaying an original data file and allowing a predetermined user to input a signature track; the image collection module is used for acquiring a front image anda dynamic image; the processor captures the front image through the image capture module before the signature track is input, generates an recognition result according to the front image, and allowsthe predetermined user to use the touch screen to input the signature track when the recognition result meets a starting condition. Therefore, the handwritten signature action can be performed only when the recognition result of the front image meets the starting condition, so that the imaging quality of the predetermined user in the dynamic image is improved, and the reliability and the authenticity are further improved. 一