CTSRC(cold-formed thin-walled steel reinforced concrete) structure system is one new type of industrial structure system，which uses the cold-formed thin-walled steel to replace the vertical steel bars in common reinforced concrete shear walls. This paper conducts some study on the shear behavior of walls of high rise civil building. Experiment study on both one low CTSRC and one low RC wall of equivalent reinforcement subjected to low-cycle reversed horizontal load are tested, which includes description of experinment pheonomenon, analysis of loading and failure model, load-displacement hysteresis loop curves, load-displacement skeleton curves and analysis of strain. The experiment results indicate that under the same condition there is no difference between the shear property of CTSRC and RC wall basically on failure mode and shear behavior. At last, this paper provides some suggestions about further research contents of CTSRC structure system.