Abstract: Deep-pit manure storage process has been widely used in large-scale pig farms.Meanwhile，there are many problems in ditch cleaning under current situations，such as high work intensity and high risk of operation in confined space.According to characteristics of liquid manure and shape and size of manure ditch，a manure ditch cleaning machine was developed，which mainly included control system，high-pressure water system and driving system.Effectiveness of manure ditch cleaning machine was verified by experiments.Test results showed that manure ditch cleaning machine has high cleaning efficiency and comprehensiveness，and has good economy and market promotion prospect.