VSAT is one of primary trends of future satellite communications. Most of recent VSAT system are used as a data network or a voice network in which data can be transfered in voice channels. Such a system can not give a higher effieiency of channel utility and perform a voice/data integration well. The performance of SALOHA for multichannel voice/data integration VSAT is discussed and the numerical results are obtained. It is concluded that the protocol can provide a higher throughput

lessen the voice acess delay effectively and coordinate the difference between voice and data. Under the heavy load of voice the data channel can be occupied by voice and a dynamic assigment algorithm of channel is acquired.