You can consult Lushan bus station, 0792-828 1099.
There are also many private cars soliciting customers at the foot of the mountain. If you walk along the south gate of Lushan Mountain, you can reach Lushan Bus Station.
If you don't have a car, you can take a bus to Jiujiang city first. There must be a bus here. Then take the intercity bus from Jiujiang Jiujiangnan Bus Terminal to Shahe, and the whole journey takes about 40 minutes.