The present invention provides a watch anti-fake traceablility method and system based on two-dimensional codes. The style number and ID information of a watch are generated to be two-dimensional codes, and the two-dimensional codes are stored in a traceablility database; sale information and logistics information are stored in a directory corresponding to the watch in the traceablility database; and when the watch is subjected to true-false distinguishing, the information obtained by scanning the two-dimensional codes on the watch is taken as a query condition to perform query in the traceablility database, and the true and false is distinguished according to whether the sale and logistics results outputted from the traceablility database are consistent to the obtained sale information and logistics information of the watch or not. The watch anti-fake traceablility method and system based on two-dimensional codes are configured to perform laser printing two-dimensional codes and two-dimensional code ID on a watch through the laser two-dimensional codes technology and store the two-dimensional codes information and the sale and logistics information to the traceablility database so as to perform watch anti-fake traceablility through adoption of the traceablility database, facilitate true-false distinguishing of a watch for consumers and prevent the consumers from being deceived.