① Techniques for establishing pollution-free orchards. Including high-quality seedling breeding technology, pollination tree configuration technology, planting technology and so on. ② Application of new tree species. Including pear tree crown evacuation layered, inverted umbrella, scaffolding and so on; ③ Cultivation techniques of grass in pear orchard. Popularize the application of clover and alfalfa in pear orchard, and popularize the ecological cultivation mode of combining planting and breeding in orchard; ④ Balanced fertilization technology. Fertilize according to the nutritional diagnosis results; ⑤ Integrated pest control technology. Including biological control technology, physical control technology and pollution-free pesticide application technology; ⑥ Management technology of high-quality pear fruit. Including artificial pollination technology, pear orchard bee release technology, flower thinning technology and fruit bagging technology; ⑦ Post-harvest treatment technology. Post-harvest sorting, value-added packaging, etc.