It is suggested to go to the training base first to see whether there is an independent training base, whether there are workstations such as earthwork in the base, and the equipment is also very important. Need to have a large training excavator, each student has an excavator, whether to ensure the computer time. These points are important factors to learn excavators well. The excavator class offered by Zhengzhou developed technical school, students practice all day, and there are all kinds of excavators.