In this paper, four kinds of cement mortar are selected (one kind of 45kg grade sulphoaluminate self-stressing cement mortar, one kind of ordinary portland cement mortar, two kinds of ordinary portland cement mortar with different amount of UEA swelling agent) as matrix, three kinds of steel fiber The effects of matrix parameters and steel fiber shape on the interfacial bonding properties between steel fiber and cement mortar are analyzed. the bond-slip mechanism between shear straight steel fiber and steel fiber with hooks at both ends (bekaert and harrix steel fiber) and matrix is discussed. the load-displacement curves of straight steel fiber and steel fiber with hooks are compared and studied