Charging and discharging all-in-one machine

The invention relates to the technical field of electric vehicle charging and discharging, and particularly discloses a charging and discharging all-in-one machine which is small in size, light, compact in structure, high in protection level, convenient to assemble and low in production cost. Comprising a shell with two communicated ends, a charge-discharge and heat dissipation module slidably inserted into an inner cavity of the shell and fixed to the inner wall of the shell, and a front end cover assembly and a rear end cover assembly covering the two ends of the shell. The charging and discharging and heat dissipation module comprises a monitoring board, a power mainboard, an insulating film, a magnetic control board and a heat dissipation device which are sequentially attached and fixed, the power mainboard is provided with a first connector and a second connector, and the heat dissipation device is provided with a capacitor, a temperature sensor and a heat dissipation fan; the front end cover assembly co