Abstract：The effects of specific surface area(200～800m2/kg)and MB of limestone powder on the mechanical property, durability, porosity of mortar, and the influence of granite, limestone, sandstone, diabase powder (specific surface area 400m2/kg) on the mechanical property, durability of mortar were studied. The results show that the total porosity, fine pore porosity and each age shrinkage rate of mortar show decreasing trend with the increase of the limestone powder specific surface area. However, the porosity and coarse pores porosity, compressive strength(28d), frost resistance have no change. With the increase of the MB value of limestone powder, the resistance to chloride ion permeability, frost resistance, dry shrinkage resistance show decreasing trend, and the compressive strength increases first and then decreases. When the MB value is about 10, the compressive strength reaches the maximum; when adding the four kinds of lithology powder respectively, the sequence of the better compressive strength and durability is: limestone＞sandstone, granite＞diabase.