Abstract: A pig breeding environment information collection system based on Internet of Things was constructed by using sensor and network communication technology． Arrangement of various sensors, RFID, image acquisition and other equipment in the pig house were made to collect and store pig breeding environment information, and transmit data efficiently, stably and rapidly through Bluetooth, ZigBee, 5G and other information transmission technologies． In the processing layer and application layer, terminal equipment was used to process and analyze breeding environment information, so as to realize monitoring and effective management of pig breeding environment, and provide reliable data basis for development of modern animal husbandry． The pig breeding environment information collection system has good application prospects and basic support in scientific management and accurate feeding．