I am a fat man. how that i can train myself to be ...

First, you will have to completely change your diet, pick something healthy that works for you. Then, you'll need to start going to the gym and working out every part of your body, at least 4 times per week.  When you have lost the fat, you can then start working on specific body parts, in order to look more like a body builder.

Speak to your family doctor. You will need a good program to reduce your weight and to gradually build up your muscular structure. This should be done slowly and under supervision because it entails drastic changes in the way you have been conducting your life.

Sign up at a gym.  They will train you. It takes hard work. 

Sign up at a gym.  They will train you. It takes hard work. 

Try to loose some weight first before going to the gym. Cardio exercises will do like running or biking, 30-40 minutes and 4-5 times a week. Doing this is very effective in burning some calories. After you've done losing some weight, go and be signed up for bodybuilding programs at a gym. You might want to try and visit:

www.worldgym.com

Find a mentor that can help you with your training, diet, and supplementation. If you can not find a qualified mentor, purchase some magazines and books dealing with bodybuilding and also a personal trainer. If you order some supplements you can save some money here Bodybuilding.com Coupons .