Travelling from Shanghai to Wuyuan

For Wuyuan, do you mean the one in Jiangxi Province?
If so, there are two direct buses from local South Long-distance Bus Station to reach Wuyuan directly. The two buses are at 09:28 and 18:45. The journey takes about five hours and a half on the way. The ticket fare is 180RMB.
If you cannot catch the direct buses, you may take the bullet trains to reach Shangrao from Hongqiao Railway Station. Upon reaching Shangrao, you can take a taxi to reach local Daihulu Bus Station to take buses for Wuyuan. The bus fare is 35RMB.