The Guangzhou Grain Trading Comprehensive Service Platform is a one-stop, comprehensive online trading platform covering the entire grain industry chain and multi-category transactions. It is built by the Guangzhou Rural Property Rights Exchange (affiliated to the Guangzhou Exchange Group) under the guidance of the Guangzhou Municipal Development and Reform Commission and the Guangzhou Municipal Grain Reserve Management Center.The platform integrates two key tasks—bidding for grain reserve storage and competitive trading (purchase and sale of grain)—into an information system. It provides end-to-end comprehensive services for both buyers and sellers, serves as a practical tool for government departments to enhance the management efficiency of grain reserves, and improves the informatization level of the grain industry. Practice has proven that the Guangzhou Grain Trading Comprehensive Service Platform offers transparent, standardized, intelligent, and efficient end-to-end trading services for the city’s large-scale annual social grain circulation and grain reserve rotation. It effectively improves trading efficiency and mitigates integrity risks in the grain purchase and sale sector.