The application relates to a battery steel shell riveting device which comprises a pressure mechanism and a riveting jig, the riveting jig comprises a positioning column, a fixing seat and a base, the positioning column is vertically fixed on the fixing seat, the base is located below the fixing seat, an elastic structure is arranged between the fixing seat and the base, a hollow part is arranged in the positioning column, a pole is arranged in the hollow part, the pole extends into the base through the positioning column from the top of the positioning column, the circumferential surface of the pole is provided with an outwardly protruding annular protrusion, the circumferential surface of the pole is provided with a stepped hole matched with the protrusion at the positions above and below the protrusion, gaps are formed between the circumferential surfaces of the pole above and below the protrusion and the inner circumferential surface of the positioning column, springs are sleeved with the pole at the positions of the gaps, the springs abut against the protrusion and the positioning column respectively, and the pole and the positioning column are elastically connected through the protrusion and the springs.