A method of playing images on a portable electronic device is disclosed to include the steps of: providing a portable electronic device that comprises a display device, a browser program, a USB port, a USB OTG module, and a memory, and said browser program includes an editing function; connecting a digital camera device to said portable electronic device, and said digital camera device comprises a display device, a USB port, and a memory; thereby said USB OTG module detects whether or not said memory of said digital camera device includes a multimedia file; if yes, then call said browser program and display said multimedia file on said display device; and a user using said editing function to operate said multimedia file on said portable electronic device. The present invention also relates to a portable electronic device, which can control playing images of a digital camera device on the portable electronic device.