1. The ditching quality is good; the width of the ditch can be adjusted from 10-40cm, and the depth is 0-1.8 meters, adjustable, and the ditch is straight and the wall is steep. Manual and excavator can not make such a ditch.2. Good quality and long life; blades and chains are made of new craft materials and are durable.3. High efficiency; higher operating efficiency than manual and excavators, 4-6 times that of excavators, especially in the case of digging narrow and deep trenches (embedded pipes or buried cables), the operating efficiency of this machine is obvious prominent.4. The whole machine is simple in structure, easy to operate, easy to maintain and not easy to damage.5. Wide application; used for trenching in various hard soil layers, concrete, asphalt pavement, frozen soil, etc.