Abstract: With the construction of power grid and information technology in Inner Mongolia for many years, power marketing requires higher and higher data integration ability and information search speed. Therefore, in order to improve the data search ability of power companies, this paper puts forward an overall framework of intelligent search engine on how to search target data quickly. The search engine adopts the mode of combination of distribution and centralization in its structure. Through the improvement of database index establishment method and the improvement of index algorithm with adaptive ability evolved from genetic algorithm, the intelligent marketing data search method provided by the intelligent marketing data search engine based on large data is greatly improved. It improves the retrieval speed and accuracy of the results, and becomes an indispensable user assistant in the process of marketing business processing.

Key words: intelligent search, big data, retrieval algorithm