Abstract: In order to effectively improve information and intelligence level of leaf vegetables industry，ensure land production efficiency and product quality safety，standardize industry chain of leaf vegetables supply.Based on technology of intelligent combination monitoring of precision equipment in leaf vegetable production，respective traceability informations for consumers and professionals were determined.A leaf vegetable production monitoring and tracing system based on Internet of things was constructed and application of this system has realized full track on production line from a seed to sales so that products were available in time to avoid buying expired and substandard food.