Portable temporary pacemaker

The portable temporary pacemaker comprises a temporary pacemaker body, rotating grooves are formed in the two side edges of the top end of the temporary pacemaker body, a fixing groove is formed in the top of one side of the inner wall of each rotating groove, and limiting sliding holes are formed in the positions, close to the fixing grooves, of the two sides of the top end of the temporary pacemaker body. A fixing clamping column is installed in the fixing groove, a T-shaped limiting sliding block is arranged at the top of the outer surface of the fixing clamping column, through use of the fixing groove, a limiting sliding hole, the fixing clamping column, the T-shaped limiting sliding block and a limiting spring, the rotating block can be limited and fixed, and a user can conveniently use the fixing plate; through the use of a limiting groove, an extrusion groove, an extrusion plate and an extrusion spring, an electrode connector installed on the temporary pacemaker body can be extruded and limited, the el