Land consolidation, as a means to realize the sustainable utilization of land resources and to enhance the land utilization efficiency and to maintain the dynamic balance of gross land quantity, plays a key role in land resources allocation, guarantee of food and ecology. This paper illustrates the necessity of protecting the ecological environment in land consolidation, analyzes some issues regarding ecological environment during land consolidation, such as the worsening soil erosion, the decrease of landscape and biological diversity, the aggravation of agricultural surface pollution and the increase of water utilization. At the same time, it presents some approaches to optimizing environment, such as to select land consolidation object, to analyze the effect about the ecological environment before the execution of land consolidation, to design the landscape during the land consolidation, to manage the land consolidation after it ends, to combine the basic construction and conservation of water and soil and so on, thus providing a way to managing the land consolidation projects in a scientifically standard way.