Electronic whiteboard system and operation method thereof

An electronic whiteboard system and an operation method are provided. The electronic whiteboard system includes an electronic device. The electronic device includes a whiteboard module. The whiteboard module performs a writing operation. The whiteboard module determines whether a writing track of the writing operation is a straight track or a curved track, and adjust the writing track to an adjusted writing track according to a corresponding parametric curve, and generate a writing message according to the adjusted writing track.