Poly(tridecanediamine diphenyl ether dicarboxylic acid)(PA13O) with long carbon chains and high molecular weight was synthesized by salt forming, prepolymererization, solid-state polymererization of diphenyl ether dicarboxylic acid with 1,13-tridecanediamine consequently. The chemical structure was confirmed by infrared spectrum, nuclear magnetic resonance. The physical and mechanical properties of PA13O are measured, and the properties of the polyamide are compared with those of PA9T and PA46. The results show that the mechanical properties of PA13O are similar to those of PA9T and PA46, so PA13O is a promising heat resistant engineering plastic.