In order to study whether there is genetic diversity among AMF in utilizing soil organic phosphate, a pot experiment was carried out to study effect of arbuscular mycorrhizal fungus (Glomus Mosseae, Glomus Versiformea, Gigaspora Margarita and Gigaspora Rosea) on acid and alkaline phosphatase activities and soil phosphate in the rhizosphere of clover. The pot was separated by 30ìm nylon net into three compartments. the central one was for root growth, and the other two for hyphal growth. The two outer compartments were filled with soils collected from field plots either receiving chemical fertilizer or manure in a long-term fertilizer experiment. The treatments consisted of sterilized soil either uninoculated or inoculated with AMF. Soil phosphatase and phosphate were examined, separately, 9 weeks after sowing. The results showed that the activities of acid and alkaline phosphatase were increased with mycorrhizal inocunation. AMF Glomus increased soil phosphatase activity in the whole hyphae compartment. Soil phosphatase activities were higher in the Glomus hyphae compartment than in the Gigaspora hyphae compartment. While there was no difference between AMF of the same genus. Decomposition of organic phosphate compound was promoted by the AMF phosphatase efficiently.