Rare tree species maintenance equipment and maintenance method

The invention provides rare tree species maintenance equipment, and belongs to the technical field of vegetation maintenance. According to the technical scheme, an annular water tank concentric with a container is arranged on the inner wall of the upper portion of the container, a plurality of stirrers are arranged in the annular water tank, a plurality of water injection pipes extending into the lower portion of the container are evenly distributed at the lower end of the annular water tank in the circumferential direction, valves and flow meters are arranged on the upper portions of the water injection pipes, the lower ends of the water injection pipes are sealed, and the upper ends of the water injection pipes are communicated with the annular water tank; a plurality of water outlet holes are formed in the side wall of the water injection pipe; a monitor for monitoring soil humidity, temperature and fertilizer element content is arranged on the inner wall of the container, and a soil heater is arranged at