Abstract: Tracing quality and safety of rice in a fast and efficient way is needed.A rice quality and safety traceability system with low cost and high portability based on two- dimension barcode recognition was developed.The system included two parts: a generating two- dimension code system of the product information based on the composite structure of C / S, and a recognizing two- dimension code system based on Android cell- phones.They were used for companies and consumers tracing production and distribution of rice products.The test results showed that the generating two- dimension barcode system could record safety and quality information of rice supply chain in a two- dimension code. The recognizing two- dimension code system could read the information in the two-dimension code.This research provided a viable scheme for rice quality and safety traceability and a reference for quality and safety traceability of other primary agricultural products.