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In order to improve the technical level of modern agrometeorological service, the quality of agricultural products, and the efficiency of agricultural services, a platform for climate quality certification and traceability of agricultural products is developed based on the J2EE technical framework and the Eclipse development environment. This platform uses a threelayer WEB architecture and the MVC design pattern and designs the components such as the interface layer, system platform infrastructure layer, JSP general architecture framework, business service layer and WEB application layer, which improves the system security, portability and development efficiency effectively. This paper introduces the system architecture, workflow and key technologies in detail. The authentication module adopts the mode of combining platform evaluation with expert evaluation, which improves the reliability of authentication information. The traceability module adopts the AES and RSA hybrid encryption algorithm to generate QR codes, which ensures the security of the traceability system of agricultural products.