Forest cleaning is clean engineering, due to construction projects often left behind many garbage dirt, all kinds of stone on the ground, wall legacy will be launching the mud block glue, paint, glass, water, dirt, rust, etc., these must be cleaned in forest work, so it is one of the most difficult, the most complex and demanding work, the stand or fall of forest engineering, directly affect the quality and grade of the daily cleaning work in the future, so be forest has a quite important requirements.