Pruning pear trees is a highly operational technology. It is the most demanding management content in fruit science. Due to the complexity, flexibility and the influence of many factors, there are two extreme understandings for beginners: one is that the plastic trimming technology is very complicated and feels unattainable, and there is no way to start; Second, I think it's very simple. As long as I can use scissors and saws, I will trim them. In fact, although the pruning of fruit trees requires high technology, you can learn it as long as you first understand the basic principles of pruning, operate according to certain norms, practice repeatedly, experience carefully and accumulate experience continuously. Usually you have to work continuously in the orchard for about 5 years before you can be skilled in shaping and pruning.