The present invention relates to a poultry purchase and wholesale market data collection system. A data input device is arranged at each transaction point at a transaction scene, data of a client suchas the code, the booth number and codes of the poultry names are input into the data input devices, a data centralized collector arranges and collect the input data of the data input devices and setsthat the data is not public. The data centralized collector and the data input devices employ electric wires for communication, the data input devices is accessed into the Internet through a networkinterface, and therefore, a portable computer and a handheld mobile device are employed to understand the good detailed information of each purchase and wholesale market.