The invention provides a handwriting information exchange mode in communication systems for instant messaging, and the like and an implementation method thereof in different communication systems. The invention is suitable for systems of instant messaging, E-mails, electronic message boards, BBS (Bulletin Board System), network communities, blogs, mobile communication terminals, and the like. The invention integrates the functions of handwriting inputting, handwriting editing, handwriting storing, data sending, handwriting restoring, and the like into a whole and ensures that two communication parties can conveniently input and acquire handwriting (original handwriting) information through various handwriting equipment, and information which cannot be exchanged through the traditional communication system can be communicated through the mode. The invention enriches the exchange means in digital communication systems, expands the application of the communication systems and pushes the development of communication technologies.