For the purpose of understanding the seismic resistance of stirrup corroded reinforced concrete structures, the cyclic loading on six corroded flexural members was studied, and the hysteresis loop and skeleton curve of various degrees of corroded reinforced concrete specimens were obtained and the change rules of stirrup corrosion on specimen bearing capacity, stiffness, ductility, energy dissipation were analyzed. Influence of corrosion cracks on mechanical behavior of the members was studied. Its revealed that hysteresis loop knead gathering effect of corroded members is clear, the fullness and area of hysteresis loop reduces gradually, stiffness, ductility and energy dissipation decreases as corrosion rate of reinforcement increases. When stirrup corrosion rate of reinforcement increases to 103%(by mass), seismic resistance of members becomes weak more significantly. Tests found that concrete confining effect is diminished caused by stirrup corrosion. When reached the ultimate load, the brittleness of the samples becomes obvious, ductility becomes worse, and failure mode of corroded specimen may be converted into shear failure.