The invention relates to bonsai cultivation methods, in particular to a making method of a tea tree bonsai. The making method comprises the following steps that firstly, a Fuyun No.6 tea tree is selected as a female parent, a Foshou or Xiaoqi tea tree is selected as a male parent, artificial hybridization is performed, and tea seeds of a single offspring plant are obtained; secondly, the tea seeds are planted in a pot; thirdly, normal temperature and humidity of soil in the pot are well kept after germination of the tea seeds; when growing to 18-22 cm, the tea tree seedlings are inspected and screened, and the tea tree seedlings integrating excellent characteristics of the male and female parents are selected for styling. According to the making method of the tea tree bonsai, firstly, the Fuyun No.6 tea tree which is high in stress resistance, wide in adaptability and high in planting survival rate serves as the female parent during artificial hybridization, and the rare tea tree variety, namely the red-shoot or green-shoot Foshou tea tree which is unique in leaf structure, rich in leaf type and diversified in leaf color and shoot and leaf color serves as the male parent. Through the making method, the problems that an original tea tree bonsai is simplex in variety, monotonous in style, low in survival rate, slow in growing trend, poor in insect resistance, prone to aging, high in management difficulty and the like are solved.