Abstract: In view of the problem of load distribution along hollow grouting anchor cable, we carry out tensile experiment on this instrument with the assistance of incorporated cable structural unit in FLAC^3D, and we also analyzed the stress-displacement laws of full-length cable and surrounding rock mass and axial evolution laws of cable under different tensile load. The result shows that rock mass ranges from 0 m to 0.5 m around the cable shows larger displacement as the range shrinks. Displacement of rock mass in the same place increases as the tensile load rises; generally, displacement of rock mass shows negative exponent decrease along radical direction of cable. Tensile stress along the cable-grouting interface will gradually turn into pressure stress as the tensile increases. Displacement of cable shows dramatic increase as the tensile load reaches 400 kN to 440 kN, hence, breakage can occur along the cable. The maximum displacement before breakage can reach to 250 mm or so; this value can turn into 400 mm after the immediate fracture of cable. Load of cable transfers from loading end to grouting end under different tensile load, and the shear sliding failure will gradually increases, it thus causes the fracture of cable. It is feasible to conduct this procedure of grouting cable based on FLAC^3D and the results also confirm to field trial.