Is there any bus from dujiangyan irrigation scenic area to mount emi ?

There are two ways that you can consider.
The first one is: take the bus at Dujiangyan Passenger Transportation Center to Emei, departing at 09:00 and 13:50.
The second one is: take the train at Dujiangyan Express Railway Station to Xipu station. Then transfer to take the metro line 2 to Chengdu East Railway Station. Then take the train to Emei. Or take the metro line 2 to Chadianzi Bus Station where you can take the bus to Emei.