The research status,types and development trend of digging machines at home and abroad are introduced and an overall introduction to the design of a new backpack digger is made.

• 介绍了挖坑机械在国内外的研究现状、挖坑机的类型及其发展趋势,并在此基础上对新型背负式挖坑机的设计做总体介绍。