Triangle maple is a small deciduous tree of Aceraceae. The branches are thin. A simple palmately lobed leaf. The foliage is dense and beautiful, the autumn leaves are fiery red, and the ornamental value is high. Triangle maple is a positive plant, which likes sunny, a little shade-tolerant, warm, humid and well ventilated, and not cold-resistant. Suitable for growing in deep fertile soil rich in humus. Triangle maple has a strong and developed root system, which is very suitable for making bonsai with roots or stones. There should be a long-term branch storage stage in the early stage of production to ensure strong branches. When the branches grow to 40 cm long, they should be coiled in a circle. At this time, the processing technique should be mainly tied, supplemented by scissors. The branches of triangle maple are brittle and hard, so be careful not to break them when winding. When the bonsai is basically formed, scissors should be given priority to keep the tree shape. Before and after the first ten days of August, the old leaves were removed many times, which could make the leaves of Acer truncatum smaller and the autumn leaves turn red. Cut off the long branches as needed. Lazar is the main model in the early stage, and pruning is the main model in the later stage. Prune branches, corners and branches carefully, and observe the leaves behind them and clean them before germination. Stay thick and stay short, stay long and stay thick and stay short, and repeat it several times to become a boutique!