The utility model relates to the technical field of battery shell detection equipment, in particular to a cylindrical battery shell detection device which comprises a
machine body, a water tank is arranged on the surface of the outer wall of the
machine body, a base plate is assembled on the surface of the bottom end of the inner side of the water tank, and multiple sets of bases are installed on the surface of the top end of the base plate in a screwed mode. A
vertical cylinder seat is slidably mounted on the surface of the top end of the base; when the detection equipment is used for detecting a battery shell, the battery shell can be conveniently matched with a bottom ring seat in a water tank, then an electric push rod in a
machine body operates, the electric push rod operates conveniently to push a taper
pipe seat through a clamping seat, the taper
pipe seat descends and abuts against the battery shell, and the battery shell is pressed; the battery shell can be limited in the water tank, follow-up detection is facilitated, meanwhile, the bottom ring base and the taper
pipe base are convenient to disassemble and assemble, the specification of the battery shell is convenient to replace, and therefore cylindrical batteries of different models can be detected conveniently.