I would like to ask about from the Giant Buddha leshan , did they have any bus to go to Emei?

From the Giant Buddha Leshan to Emei, you can take the bus No.601 directly opposite the entrance of Giant Buddha Leshan and get off at Baoguo Temple, at the foot of the Mount Emei.

From Emei to Chengdu, there are buses at the tourist center at Baoguo Temple and you can take the bus back to Chengdu Xinnanmen Bus Station.