Abstract: In the emergency treatment, multi-source resource environmental data, with isolation and poor relation, is difficult to be integrated retrieved. From the practical problems of applications, this article brings multi-source resource environmental data into an integrated grid reference system. Based on grid code, multi-source resource environmental data is integrated organized logically and integrated retrieval would be realized. With shape as the distinction, grid codes are given, and storage in code index table. According to code computing method, multi-source resource environmental data could be integrated retrieved. Real experiments show that, multi-source resource environmental data integrated retrieval is realized, and improve the efficiency by about 10 times.