The invention relates to a collision prevention method based on RFID food tracing. The method comprises the following steps of: preparing a base; after each animal is born in the farm, enabling the management platform of the farm to generate a unique production identification code belonging to the animal; meanwhile, completing the information registration work of various types of information of the animal in a food safety data center, adopting an RFID tag used in a farm as a unique carrier of a meat product production identification code, and connecting each RFID tag with the production identification code in the data center; authenticating a flow of a protocol; When the label is scanned, the capture effect is utilized. According to the method, the unique'production identification code 'ofthe animal is registered in the data center; The RFID tags used in a farm are used as unique carriers of'production identification codes' of meat products, so that the RFID tags and the'production identification codes' are connected in a data center, the purpose of one-to-one correspondence is achieved, the purpose of avoiding tag scanning omission is achieved, and the problem of tag collision issolved.