Abstract: The present invention relates to the error control method in inter-multi-user multimedia communication. There are error detection, error reporting and error recovery functions in the conventional error control method which finds out and solve the error occurring at the time of data transmission between transmitter and receiver, however, these functions are an error control method occurring in end-to-end communication consisting of one transmitter and one receiver and are not appropriate to solving errors occurring concurrently and in a bundle between one or some transmitters and many receivers in many-to-many multiple points inter-multi-user communication such as multimedia communication. Therefore, the present invention uses the damping technique to minimize the number of error control packets of which all the receiver having sensed the error concurrently request the resend based on the NACK.