To meet the needs of elastic-plastic analysis of reinforced concrete （RC） structures induced by chloride erosion， an accelerated corrosion test is conduct on six RC frame column specimens. Then， quasi-static tests are carried out. The apparent damage of corroded steel bars is observed under artificial climate environment. The influence of corrosion level and axial compression ratio on failure pattern and seismic behavior of the specimens is analyzed. Based on the test results， a double parameter damage model is used， and the value of the model parameters is defined. Then， the damage development law of corroded RC frame columns is quantitatively disclosed. Furthermore， a skeleton curve model of the RC frame columns is established by combining theoretical analysis with experimental regression. The model considered the influence of corrosion and axial compression ratio. The cyclic degradation index based on damage is introduced. The hysteresis rules reflecting the performance degradation in four stages of loading， unloading， reloading and declining are proposed. Then a restoring force model of corroded RC frame columns with bending failure is established and the accuracy is verified. The error of the calculated skeleton curve and the test skeleton curve is less than 10%， and the error of the calculated and test energy dissipation is within 20%. Since the linear characteristic of the calculated reloading curve，there is an obvious error of the reloading stage. However， the calculated hysteretic curves are in good agreement and have small errors on the whole with the experimental results， indicating that the established restoring force model can accurately reflect the seismic behavior of corroded RC frame column with bending failure.