How i go to the great wall from beijing railway station?

Hey, the Badaling section is recommended to you, and one day is enough for a return trip. You can take subway line 2 from the railway station to Xizhimen. Then walk to the nearby North Railway Station to take S2 train to the wall. Upon getting off, you need to walk about 15min to the entrance. The train ticket only costs CNY6 per person by the way. You can also use the same way back, or take bus no. 877 or 919.