Land suitability evaluation is an important tool for identifying ecological attributes and potential development of lands and guiding the development rationally. Taking wudalianchi town for instance, this paper constructed seventeen factors of resistance valuation system, standing on profit and loss analysis, using RS and GIS, and applying minimum cumulative resistance model in space region, physical geography, social economy and ecological protection four aspects. The results showed: type Ⅰ(highly suitable construction region), type Ⅱ(relatively suitable construction region), type Ⅲ(relatively unsuitable construction region), type Ⅳ(unsuitable construction region). The areas of these types are 41.01 km², 138.97 km², 387.85 km² and 492.26 km², and the percentages of these types are 3.86%, 13.11%, 36.59% and 46.44%. The results can provide a technology method for township construction land suitability and space regulating planning.