Abstract: According to the regional TM and SPOT vision, the scope of hydraulic fill region can be decided with embracing strong, information-rich, clear linear imaging features and other characteristics. The hydraulic fill region should be combined with the results of field prospecting and indoor test. Mapping technology can make work fast, high quality and low cost. In addition, the second level evaluating influence factors include field surroundings, project property, mechanics property and consolidation time, and relatively. Another 13 first level single-factor evaluating indicators include groundwater level and quality, type of cause's combination, salinization, type of rock and soil mass, clay content, liquidity index, water content, porosity ratio, cohesion, internal friction, compressibility, compression modulus and consolidation time. They are chosen for the system comprehensive evaluation. The evaluation index weight is determined by AHP.They are normalized for hydraulic fill project of Liaodong Bay. The engineering suitability remote sensing zoning is used to make the zones Ⅰ, Ⅱ and Ⅲ. The results are used to propose zone of the result of hydraulic fill region suitability, to provide the reference for the engineering construction of this region and for engineering suitability zoning of other hydraulic fill region and to improve the economic and social benefits.