In recent years，wireless network technology has been widely used in industrial control system． Asthe bottom foundation of wireless network communication in the industrial control system，Media Access Control( MAC) protocol is the key protocol for efficient wireless network communication． An energy-effective MAC protocol( MH-MAC) is designed directed at the industrial control system equipped with multi-radio wireless terminal． Thisnew protocol can flexibly configure channel assignments and media access strategies according to different network environments and application requirements，and coordinate the efficient work among multiple radios through the ap-plication of MH-ＲS schedule algorithm． Finally，a comparison is made between MH-MAC and B-MAC to show that MH-MAC protocol is obviously superior to B-MAC protocol in increasing throughput，reducing transmission delayand decreasing energy consumption． Besides，it has great expansibility and practical value．