Livestock and poultry carcass skin traceability two-dimensional code identification method and traceability evidence application program

The invention provides a livestock and poultry carcass skin traceability two-dimensional code identification method, which comprises the following steps: an acquisition step: acquiring n pictures A (n) containing traceability two-dimensional codes and printed on the livestock and poultry carcass skin; an identification step: carrying out data word identification on the data coding areas in the m pictures A (n); and an integration step: integrating more than two identification results a (m), generating a new data word Ma of the data coding area, judging whether the data word Ma accords with a two-dimensional code generation rule or not and whether a decoding result a of the data word Ma accords with a traceability code generation rule or not, and if so, taking the decoding result a as a correct identification result. After the method is adopted, code scanning recognition can be performed on two-dimensional codes and traceability codes printed on carcass skins of livestock and poultry such as pigs, cattle, shee