Anchor frame beam is a method for strengthening the expansive soil roadcut slope. It can effectively prevent cracks and fissures of expansive soil slope from expanding. Thus it can preclude the slope from being destroyed. FLAC3D software is used for simulating anchor frame beam strengthening expansive soil roadcut slope. Main parameters such as length
range interval and angle of anchor frame beam
are investigatedimplored so as to acquire how to influence slope deformation. The results show that the ratio of slope has an impact on slope deformation; and that the angle and the range interval of anchors influence slope deformation. The pertinent proposal for design of main parameters of anchor frame beam is put forward so as to offer reference for engineering optimum design.