The schiff base containing aromatic disulfide bond was successfully synthesized by the reaction of salicylic aldehyde and 2, 2-diaminodiphenyl disulfide ether. The schiff base was reacted with polytetrahydrofuranediol, isophorone diisocyanate,2, 2-dihydroxymethyl butyric acid and 1, 4-butanediol. The characterization of the schiff base and polyurethane film was performed by 1HNMR and FTIR. The results showed that the self-healing waterborne polyurethane with aromatic Schiff base and aromatic disulfide bond was successfully synthesized. The self-healing ability of polyurethane was characterized by scratch test and healing test. The results showed that swPU-2 had the best scratch healing effect and self-healing rate. After 12h healing at room temperature, swPU-2 film's scratch disappeared, and after 24h healing at room temperature, the self-healing rate of polyurethane film could reach 95.8%