What subway line goes to INTEX Expo Center in Shanghai?

You can use subway line 2 and 10 to that center directly.
If using line 2, you need to get off the train from Loushanguan Road Station and get out of the station from Exit 2. Then you can walk along the Loushanguan Road to that center.
If using line 10, you need to get out of the station from Yili Road Station, Exit 4 and then walk across the New Hongqiao Central Park to reach that center.