controling dc motor 220V

I have a 220V dc motor, I want to control the motor using the Arduino.

how to control the 220V dc motor using PWM pin on the Arduino? please your help. :)

You use the arduino PWM pin to operate a contactor or other power switching device suited to switching the power to your motor. As to the power switching device, google would be a good starting point to find something appropriate for your motor.

Yeah, 220V and Arduino don't really mix. Start smaller and work your way up in knowledge until you appreciate why this is the case.

220VDC really is dangerous and you can hurt yourself in ways you don't expect.

http://www.ruggedcircuits.com

Googling for DIY electric cars might produce some info.