Is there a subway from Chengdu East Station to Jintang County?

Yes

Walk 38 meters from Chengdu East Railway Station to Chengdu East Railway Station (about 1 minute), then get on at Chengdu East Railway Station in the direction of North Outer Ring Railway Station of Metro Line 7, get off at Sima Bridge, transfer at Sima Bridge Station, take Metro Line 3 to Chengdu Medical College, get off at Exit A of Chengdu Medical College, walk 320 meters to Xingle North Road Station for about 5 minutes, and then take No.902 to Jintang. The total length is * * * 56.8km, the walking distance is 1.7km, and the duration is 2h 16min.