Abstract: With the rapid development of the society and economy, it was obvious that the demands and supplies of land was out of balance. Consequently, we should make a proper plan for land use. Land use planning adjusted the structure and layout of land use, which could influence the environment in this area. In order to research the effect on the land use planning, this paper researched in 23 small towns of Yu city. It analysed the total and the per capita ecological carrying capacity from the early planning to the late planning which based on Ecological Footprint. The results showed that:(1) the total ecological carrying capacity in Yu city increased from 120062.95 hm2 in 2005 to 120933.45 hm2 in 2009 and became 123040.46 hm2 in 2020. (2) the per capita ecological carrying capacity in Gucheng town and Yuzhou urban area decreased in the excessive population growth area, while the per capita ecological carrying capacity in other areas increased after the planning. The new implementation of land use planning was beneficial to the environment and increased the total ecological carrying capacity in Yu City.