In this paper, the spatial stress characteristics of anchor and the influence laws between anchor stress and axial tension of steel strand was studied.The finite element software ABAQUS was used to establish the simulation calculation model of anchor-steel strand. Considering the influence of microslip and different friction coefficient between the clip and anchor, under different strand tension, the spatial stress distribution characteristics and axial and the hoop strain variation rules of anchor were analyzed, and the strain distribution of anchor was measured by anchoring tensile test.The results show that the steel strand shows a complex three-dimensional stress state under the anchor position due to transverse extrusion of the clips, and the calculated Mises stress is much higher than that in the unanchored area.The friction coefficient of the interface between the clip and the anchor has an obvious effect on the strain of anchor. When the friction coefficient is 0.04, the hoop and axial strains are smaller than those when the friction coefficient is 0.01 and 0.02.The stress of anchorage and axial tension of steel strand accord with monotone mapping relationship, but do not completely accord with the linear variation law. The stress at the position of measured symmetrical measuring point of anchorage is also difficult to guarantee the complete consistency.