Many students will ask when consulting, is it useful to learn excavators with simulators? I'm always worried that I can't learn excavator technology. Indeed, in order to reduce the fuel consumption cost, some excavator training schools compete to introduce and adopt simulators for excavator teaching, which is an understandable market behavior. However, if the excavator training school only replaces it with a simulator to reduce the cost, and then shortens the practice time of the excavator, it is very bad, which will not only help the students master the excavator technology, but will certainly damage the reputation of the excavator school in the long run. It must be clear that the simulator, as a new teaching instrument, should be a new means of excavator teaching, and it is by no means a substitute for the real excavator, because the simulator is obviously worse than the real excavator in experience. Increasing the use of simulator teaching is of great help to cultivate students' hand feeling, provides safety guarantee for students to practice on real excavators, and is an effective means to improve learning efficiency. In this sense, the simulator is only a supplement to excavator teaching, and it is a kind of enrichment of excavator teaching means, which can never completely replace the real excavator teaching. However, students and parents will reject the simulator because they don't know much about it, mistakenly think that they can't learn the real technology, and even think that excavator schools cheat by this means, which is very inappropriate. Practice has proved that using the simulator in excavator teaching can at least play a very important role in reducing the danger of students' operation and improving the operating feel. Therefore, excavator schools should not blindly cater to those students and parents who are rejected because they don't understand, but should give correct guidance and reasonable explanations. Of course, the premise of all this is not to completely replace the real excavator teaching with a simulator, otherwise it is no different from cheating.