An electric automobile PWM rectification and converting voltage/current pulse charging system, which comprises a rectifier module and a charging module, and the rectifier module links with a AC network and the charging module respectively, wherein the charging system further includes a DC charging management module, and the charging module is composed of a DC input module and a DC output module; the rectifier module, the DC input module and the DC output module, the DC charging management module are connected together by CAN bus; wherein the rectifier module rectifies an alternating current from power input and forms steady DC output voltage after smoothing which is provided to a DC converter module in the DC output module; wherein the DC output module further includes a DC converter module, and in the DC converter module, a bi-directional DC-DC converter is employed to realize a multiple modes of charging for a storage battery of the electric automobile, and the multiple modes of charging include constant voltage limited current charging, constant current limited voltage charging, three-stage charging, intermittent pulse charging and positive and negative pulse charging; wherein the rectifier module includes an air switch, a pre-charge resistor, an AC contactor, an input-side inductor, a three-phase full-controlled bridge converter, a PWM rectifier, a DC bus capacitor, a dummy load, a power tube driver and a digital logic protection circuit, and a control unit; the power tube driver and an isolated power supply convert PWM pulse signal sent out by the control unit into a driving IGBT or IPM pulse, and feed back a trouble signal to the digital logic protection circuit when an overcurrent occurs on power devices, wherein the AC-side of the PWM rectifier adopts a filter inductance which realizes a control of AC-side unity power factor and four-quadrant operation of the PWM rectifier and filters harmonic current of the PWM rectifier at the AC-side; wherein the DC input module is used to meter the DC current, control a DC power supply and secure the DC input and output; wherein the DC output has means to communicate and communicates with an on-board energy management system, converts output power, and outputs the voltage and current required by the storage battery; wherein the DC charging module has means to communicate and communicates with computer for interface display, identification, fees charging, receipt printing, data management, current make-and-break current control, and remote monitoring; wherein the control unit is composed of a controller and a PWM rectifier control panel, and the PWM rectifier control panel is a double closed loop control system formed by an inner current loop and an outer voltage loop, wherein the double closed loop control system is realized by using the digital regulator, adopts a direct current control to closed loop control the input current from the rectifier and realizes a high precision control of instantaneous current waveform through the current; wherein the rectifier module includes transformer, and the transformer is the epoxy resin casting dry type transformer with the star connection for primary and secondary coils to the AC network and to the input end of the PWM rectifier respectively; the PWM rectifier realizes the sinusoidal current at the AC network side of the transformer, controllable power factor and bidirectional power transmission; wherein the double closed loop control system has DSP as a master control controller and has means to employ and employs the voltage space vector algorithm to control the input current and the output voltage, so as to realize a sinusoidal current at the AC network side of the transformer and a stabilized unity power factor and DC output voltage; wherein the controller is used to communicate with the computer interface through a master-slave RS485 bus, send a running command to the PWM rectifier control panel, control the PWM rectifier and obtain running status and parameters of the PWM rectifier.