Dalian Northern Grain Trading Market integrates the functions of grain trading, information release and comprehensive service, mainly focusing on spot grain trading. The market mainly deals with grain and its finished grain in bulk, and follows the principles of openness, fairness and justice, and adopts computer systems for trading, settlement and information processing. The market implements a margin system and a unified settlement system to ensure the effective implementation of trading contracts. This market is a large-scale spot grain trading market, which is different from futures and farmers and integrates modern grain trading and domestic and foreign grain price information. 1998 since it was put into operation in June, the cumulative grain trading volume in the market has exceeded 40 million tons, and the trading volume has exceeded 50 billion yuan, ranking among the best in the national spot grain wholesale market.