Can i Have bus from beijing internation airport to west railway station at time 00:30

Yes, The airport shuttle bus line 7 running between the airport to the train station, but it stop operating by 01:00, if you hurry up, you may catch that.

If you miss it, you can take the overnight shuttle bus and get off at the Fuxingmen Station, which is about 4 km from your destination. Then you can take a taxi there.

But line 7 timing stops at 24:00 as in this web page but you quote 01:00

Actually, the operating time varies between high season and low season. During high season between March 1 and October 26 & Spring Festival, the last bus leaves at 01:00. For the rest time, it leaves at 00:00.