Abstract: A carbon nanotube carbon nanotube reinforced hollow microlattice material was prepared by combining polymer projection micro-stereolithography additive manufacturing technology, carbon nanotube nickel phosphorus nanoelectroless electroless plating composite coating preparation process and chemical etching method. Compression test was carried out and its mechanical properties were analyzed. Through the in-situ compression test of the hollow micro-lattice material, it is found that adding 3.08 wt% carbon nanotubes to the coating can increase the elastic modulus of the hollow micro-lattice material by 2.4-2.6 times and the compressive strength by 2.0-2.9 times. Using the shear lag model and the Halpin-Tsai model, the reinforcement effect of carbon nanotubes was analyzed micromechanically, it is found that the mechanical reinforcement effect of CNTs on materials is mainly the shear hysteresis effect and shear band retardation effect caused by the interaction between CNTs and nickel-P amorphous phase. The research methods and results have important practical significance for improving the mechanical properties of hollow microdot matrix material and even its engineering application.