The invention relates to the field of medical instruments, in particular to a miniature adhesive subcutaneous injection device. The miniature adhesive subcutaneous injection device comprises an adhesive film, an open elastic cover and a plurality of subcutaneous injectors, wherein the adhesive film is used for being adhered on the surface of the skin, the elastic cover fixedly covers the upper surface of the adhesive film, and the subcutaneous injectors are arranged inside the elastic cover. Each subcutaneous injector comprises a plunger rod, an injection needle cylinder and a miniature injection needle, wherein the upper end of the plunger rod is fixed on the inner surface of the elastic cover, the injection needle cylinder sleeves the plunger rod connectively, and the miniature injection needle is fixedly arranged at the front end of the injection needle cylinder. By the miniature adhesive subcutaneous injection device, self rescue of individual soldiers in battlefields is facilitated, and the problem of war wound analgesia can be solved.