[Objective] To determine the suitability types of urban construction land development from the perspective of ecology and economy

and provide reference for the spatial distribution of land use in Sheyang County of Jiangsu Province.[Methods] According to the minimum cumulative resistance value

the regional ecological constraint intensity of Sheyang County was analyzed and the intensity grade was defined. Through the uses of multiple factors and multi-factor comprehensive discriminant model

an evaluation model was constructed from the perspective of development intensity and spatial distance

and the regional development potential grade was ranked. Finally

on the basis of ecological constraint level and development potential level

the suitability zone of the whole urban construction land development was divided into different types.[Results] (1) The areas with high ecological constraints were largely different from those with low ecological constraints

where ecological protection was the main factor. From the point of view of spatial distribution

different levels of intensity and ecological binding showed a ladder-like distribution

from the inside to the outside of the research area

and the intensity gradually leveled up. (2) The comparison results of development potential and ecological constraint classification showed that the contradiction of development potential was prominent. The demand for economy was vigorous

and the situation of ecological protection land was pressing. (3) Suitable protection area

relatively suitable protection area

relatively construction area

suitable construction area

covered 11.04%

24.78%

34.59%

29.59% of the total research area respectively.[Conclusion] The development suitability zone has an alternative structure and characterized by "urban area as core and rural area as periphery". Meanwhile

suitable construction areas are gathered in and around the Hede Township and gradually reduced on the periphery.