In order to improve the durability of coastal reinforced concrete structures, the effects of the mixed rust inhibitors, migrated rust inhibitors, and zinc-based sacrificial anodes on the reinforcement corrosion behaviors were investigated by linear polarizations and electrochemical impedance spectroscopies. Their rust resistance efficiency was also compared by static weight-loss tests, which were under different chloride concentrations and pH values in simulated concrete pore solution. The test results indicate that the anti-rust performance of the migrated rust inhibitor is weaker than that of the mixed rust inhibitor with the same content (1%) and chloride concentration. The anti-rust effect of the zinc-based sacrificial anode is better than that of the rust inhibitor under a higher chloride concentration (0.85mol/L). Under the same test time (1d), anti-rust content (1%) and chloride concentration (0.6mol/L), the rust resistance properties of each reagent are as follows: (Neutral environment) Zinc-based sacrificial anode < Migrated rust inhibitor < Mixed rust inhibitor, (Alkaline environment) Migrated rust inhibitor < Zinc-based sacrificial anode < Mixed doped rust inhibitor.