Nowadays environmental issues facing society is one of the three major problems, the deterioration of the environment for human survival and development is caused a serious threat. The design of moving part of the silt coal loader is confined to traditional design but seldom considering the environmental elements. Through the analysis of the silt coal loader walk part of traditional design pattern characteristics and existing problems, from the angle of impact on environment, puts forward the green design thought. Based on the green design thought, all of the part of the loader should be respectively designed detailed. The design includes material selection, recycling design, disassembling design, etc. The loader can realize the purpose of protecting the environment and saving resources by the green design, according to the requirement of sustainable development. The applications of green design improve the product quality and economize resources, and make products to green environmental requirements.