1, according to the use of trees in landscaping for scientific pruning. The purpose of cutting down trees is different, and the requirements for modeling are different. It is necessary to shape trees purposefully according to their uses and achieve the goal.

2, according to the biological characteristics of trees for scientific pruning. The biological characteristics of trees mainly refer to the growth period, development characteristics and so on. Scientifically arrange pruning time to avoid damaging trees due to pruning. Follow the tree and trim it because of the branches.

3, according to the natural conditions of tree growth for scientific pruning. When pruning and shaping, we should fully consider the climate, soil moisture, soil fertility, wind and other conditions, and choose the best pruning scheme.

4, pruning with branches, shaping with trees, clear master and slave, and balanced tree potential.

5, according to local conditions, pruning as needed, different ages, different methods.