Abstract: The paper studied the interplant between five Perennial species of fine forage plants and peanut, analyzed and compared the interaction, comprehensive production level and utilization feasibility between the both based on interplant model is: forage +peanut =5+6. The results showed : alfalfa, white clover and tall fescue have much significant effects on peanut grain pod yield, which decrease by 14.2%、12.6%(p<0.01) for alfalfa, white clover and 7.6%(p<0.05) for tall fescue. Alfalfa, white clover influence hundred pod weight and big pod number(no apparent effects on total grain number)and decrease vine yield by..7.3%(p<0.05) and 1.7% respectively. Peanut can promote grasses tillering by11.01%~14.26%(p〈0.01〉)and increase LAI and chloroplastin content by 4.62%~6.37% and 5.04%~5.50%(p〈0.05〉)respectively. and increased hay yield by 8.2%、8.1%、9.3% for perennial ryegrass, orchardgrass and tall fescue respectively. Peanut can promote mixed forage the content of crude protein (CP), ether extract (EE), Ca and P and decrease the content of crude fiber (CF) combined with grasses significantly. In the meanwhile, peanut can increase 5.8% of alfalfa hay yield and lower mixed forage the content of CP, CF, Ca and P obviously and increase the content of EE combined with legumes significantly.