Insulin pump injection assembly facilitating injection positioning

The insulin pump injection assembly facilitating injection positioning comprises an insulin pump medicine storage device, an extension tube and a needle head assembly, the needle head assembly comprises a handheld base, a pushing piece, a needle and an extension lug, the needle is arranged on the handheld base in a sliding mode, the pushing piece is connected with the needle, one end of the extension tube is connected with the insulin pump medicine storage device, and the other end of the extension tube is connected with the extension lug. The other end of the extension tube is connected with the needle head, the needle head is provided with a needle withdrawing position and a needle withdrawing position relative to the handheld seat body under pushing of the pushing piece, and the handheld seat body extends outwards to form an extension lug which is arranged around the needle head and can be bent and deformed. When the needle head is located at the needle withdrawing position, the outer ends of the extending