Blood sampling and testing instrument for detecting diabetic patient

The blood sampling and testing instrument comprises a blood testing instrument body, a storage box is installed on one side of the blood testing instrument body, a first storage groove is formed in the side, away from the blood testing instrument body, of the storage box, and a turning cover is installed on one side of the first storage groove. And a storage groove is formed in one side of the top end of the first storage groove. The extrusion spring, the top plate and the like are matched, so that the needle head is pushed to move rightwards for position covering, the blood collector and the needle head are in butt joint under the action of the guide groove, the ball and the like, the needle head to be installed is prevented from being tightly attached to the position covering needle head due to the arrangement of the blocking piece, the needle head to be installed is assembled more smoothly, and the work efficiency is improved. Due to the fact that the whole assembling process is completed in the storage bo