The invention relates to a facility agriculture agricultural product information management system and a construction method thereof. The system comprises a cloud server, the cloud server is respectively connected with a client-side query system, an agricultural product information collection pool and a monitoring system, the client-side query system comprises an interchanger, a firewall, Internet, an authority authentication server and a query client-side which are connected sequentially, the interchanger bidirectionally communicates with the cloud server, the agricultural product informationcollection pool comprises a forbidden pesticide recording system, a basic information tie-in system, a water quality detection device, a temperature and humidity sensor, a soil detection device, a camera, an air detection device, a pesticide detection device and a chemical fertilizer detection device which are all connected with the cloud server. The facility agriculture agricultural product information management system and the construction method thereof have the advantages of whole-process monitoring and tracing, can meet the condition that a monitoring center monitors the whole process from production to sales of the agricultural products, meet the requirements of customers to trace and inquire relevant information of the agricultural products, and can also meet the inquiries about temperature, humidity, air quality and the like of the growing environment of the agricultural products needed by buyers.