A series of low cyclic loading tests have been conducted on short-pier shear walls with one non-reinforced and three reinforced L-shaped RC frames with openings in the ratio of 1:2, followed by a research on the seismic performance of earthquake-damaged short-pier shear walls reinforced with HPFL in different loading phases. Experimental result shows that HPFL reinforcement can effectively improve the bearing capacity, ductility performance and energy dissipation of short-pier shear walls. The shear bearing capacity and ductility of short pier shear walls are to strengthen with one axial force improved greatly, and the reinforcement effect is to increase with the earthquake damage degree lowered for the short pier shear walls with two axial force without earthquake forces. Meanwhile, the reinforcement of the specimens with HPFL helps to effectively enhance the crack resistance of the components.