any comments ,please.
Your routine looks good. I'll just make the following suggestions:
Deadlifting three times a week might be a bit overwhelming for the slow-to-recover lower back muscles. When you're starting out, it might not be a big deal. But as the weight goes up, it will. You might want to substitute squats for deadlifts on one or two of your workouts per week.
You should have some sort of back exercise (either bent over rows or pull downs/chins). Deadlifts work the back muscles, but they do so isometrically. The back muscles aren't synergists in the deadlift movement.
You should replace the front db raises with upright rows (preferably) or lateral db raises. The anterior deltoid gets plenty of work with the bench and shoulder presses, while the posterior deltoid will get worked if you add some sort of rowing or shoulder width pulldown exercise. That leaves the lateral deltoid out - which is the reason why you need the upright rows in your routine.
JOHNNIE JACKSON said [ if you lift big weight,you gain big muscle]
yeah,but is it true??
It's more or less true - more true if you use a weight that you can control during exercise and less true if you don't. The weight is important, but so is technique.
but i dont understand that why need six months to gain muscle?
it is not enough 2month or 3??
You're not going to turn into Mr. Olympia in two or three months.
It takes time and commitment to build a quality physique. If you lack patience, it is unlikely that you'll succeed.
Good luck, and happy training. Where in China are you from, BTW?