Polishing finishing method of polylactic acid cloth

The invention discloses a polishing finishing method of polylactic acid cloth. The polishing finishing method comprises the following steps that a, firstly, a polylactic acid degrading enzyme and natural proteins are selected as polishing raw materials; and b, the polishing raw materials are added into a reaction tank, a proper amount of deionized water is added into the reaction tank, and then the solution in the reaction tank is stirred by using a stirrer. After the polylactic acid cloth is treated, the mobility between threads is improved, so that the bending stress of the polylactic acid cloth is reduced, a unique soft feeling is generated for consumers, the water absorption property of the polylactic acid cloth in use is enhanced, and the comfort of the consumers wearing polylactic acid cloth clothes is improved due to improvement of the water absorption property; and the polylactic acid degrading enzyme and the natural proteins are combined so that complete biodegradation can berealized, the using amoun