The most outstanding advantage of polyamide fiber is that it has superior wear resistance than other fibers, followed by its good elasticity, its elastic recovery rate is comparable to wool, and its weight is light, with a specific gravity of 1.14. Among the commercially available synthetic fibers, it is second only to polypropylene (polypropylene fiber, with a specific gravity of less than 1), It is lighter than polyester fiber (with a specific gravity of 1.38), so polyamide fiber can be processed into fine, uniform, soft and smooth silk for weaving beautiful and durable fabrics. In addition, it has the same advantages as polyester fiber, such as corrosion resistance, no fear of moth damage, and no fear of mildew.

Polyamide fiber has good alkali resistance, but poor acid resistance. Under normal room temperature conditioning, it can withstand 7% hydrochloric acid, 20% sulfuric acid, 10% nitric acid, and 50% caustic soda immersion, and the result is not corroded. Therefore, polyamide fiber is suitable for anti-corrosion work clothes. In addition, it can be used as fishing nets, which are not afraid of seawater erosion. The service life of nylon fishing nets is 3 to 4 times longer than that of general fishing nets.