Blood sampling plate capable of being placed stably

The utility model discloses a blood sampling plate capable of being placed stably, and belongs to the technical field of medical instruments. A blood sampling plate capable of being placed stably comprises a supporting plate and a limiting assembly, and the limiting assembly is connected to the supporting plate in an inserted mode through a supporting assembly; the limiting assembly comprises an auxiliary plate and a spring, and placing grooves are evenly formed in the auxiliary plate. Through the arrangement of the limiting assembly and the supporting assembly, the limiting assembly is inserted into the supporting disc through the supporting assembly to be fixed, the containing grooves of the limiting assembly correspond to the limiting grooves of the supporting disc, and therefore a limiting structure is formed; the problems that in order to facilitate insertion of a blood collection tube, the diameter of the insertion hole of the blood collection plate is slightly larger than that of the blood collection t