<正> The present study observed the mutual benefit role of liver and pancreas in combined hepaticopan-creatic transplantation in rats. The results indicated that pancreas

when transplanted with liver

could survive for a significant long time （13. 4±1.01 days） than it transplanted alone （9. 2±1.14 days） （P< 0. 05

t test）. The interstitial rejection was mild and its rejection grade was significantly different from that of pancreas transplanted alone （P<0. 05

X2 test）. The liver

when transplanted with pancreas

regenerated with strong competence and contact structure morphologically compared with liver transplanted alone. We think that pancreas could be immunologically protected against rejection and liver can be nutri-tionalized by pancreas in combined liver and pancreas transplantation.