The aerospace landing mechanism is the most important part of aerospace landing explorations， which determines the entire aerospace exploration missions. Based on the technology of aerospace landing mechanism， the design of the landing mechanism is reviewed in this paper. It includes the buffer methods， type of landing mechanism， and landing-anchoring mechanism for small celestial bodies. Their advantages， disadvantages and suitable conditions are proposed. Then the theoretical analytical methods， rigid bodies， coupled rigid-flexible bodies， flexible bodies， and semi-active control dynamic simulations are compared. Furthermore， the advantages and disadvantages of three kinds of micro-gravity test methods are introduced. They include the pulley balance method， slope simulation， and the 1/6 scaled model method. Finally， the current problems， challenges， and development trends are proposed according to future deep-space explorations.