The invention discloses a papaya dwarfing planting method, which comprises the following key steps of: root deepening, ridging, twisting, water control and biological control. Through the physical mandatory twisting technology, a trunk is shortened, the wind resistance is improved, the ordinary production management is facilitated, and the production period is prolonged; through twice or more twisting, the posture of the trunk is adjusted, and the center of gravity of the trunk is regressed; in the process of twisting, partial tissues and nutrient transporting pipelines in a stem rod are mechanically damaged, the trunk can be prevented from spindling, the accumulation of nutrients at the bottom is reinforced so as to crosswise thicken and enlarge the stem rod of a papaya fruit tree, and the pitch between leaves is obviously shortened; and through the application of biological active substances and microbial agents, the growth environment of a papaya root system can be improved, the robust growth of the root system is promoted, and the purposes of dwarfing, compact planting, rod strengthening and high yield are effectively achieved.