[Objective] The spatial pattern of the forest industry wetland ecosystem service function in Inner Mongolia was studied in order to provide theoretical basis for the sustainable utilization of forest industry wetland ecosystem and resources.[Methods] Based on the survey data of wetland resource in 2018 in Inner Mongolia forestry enterprise, the Inner Mongolia forestry enterprise wetland ecosystem was taken as the research object. According to the evaluation methods of wetland ecosystem service value which were commonly used at home and abroad such as market value, carbon tax method, industrial oxygen producing method, shadow engineering method, pollution control cost method, expert evaluation and so on, the values of eight service function such as water conservation, carbon fixation and so on were evaluated.[Results] The total value of the service function was 8.61×10¹⁰ yuan; and those of water conservation, carbon fixation and oxygen release, degradation pollution, soil conversation, nutrient accumulation, improving the microclimate, habitats, and scientific, cultural and recreation, were respectively 1.12×10¹⁰ yuan, 1.04×10¹⁰ yuan, 8.94×10⁹ yuan, 6.76×10⁹ yuan, 5.62×10⁹ yuan, 4.33×10⁹ yuan, 2.41×10⁹ yuan, and 5.53×10⁸ yuan, The total value of Dayangshu, Wuerqihan and Kudur Forestry Bureau ranked in the top three, which were 1.12×10¹⁰ yuan, 1.04×10¹⁰ yuan and 8.94×10⁹ yuan respectively.[Conclusion] Water conservation, degradation pollution and habitats are the leading service functions; With the nutrients accumulation as the minimum service function, from the perspective of the overall spatial pattern distribution, the overall trend of the spatial distribution of the value in all forestry bureaus is as follows:in the central > in the southwest > in the north.