There are many factors that affect the screening efficiency of vibrating screen, such as the nature of materials, the selection of screen mesh and the habits of operators. When the content of fine particles is large, the productivity will increase, and the screening efficiency of materials with high humidity will decrease. For materials with high moisture content, the method of enlarging the screen opening can be used, or wet screening can be used. For materials with large silt content, wet screening should be used. A large part of screening efficiency also depends on the size of screen mesh. The longer the screen surface is, the higher the screening efficiency will be. The larger the effective screen area is, the higher the screening efficiency will be. The larger the screen mesh size is, the higher the screening efficiency will be. To a large extent, the screening efficiency depends on the size of screen mesh and the total screening efficiency. The feeding should be uniform, the tilt angle should be appropriate, and the amplitude and vibration times also have a bearing on the efficiency of the screen machine