From Nanshao Station of Changping Metro to North Third Ring Sub-branch of China Merchants Bank, you can take the subway according to the following steps:

1. Walk about 360 meters to the South Outpost.

2. Take the subway to changping line, and after 6 stops, arrive at Xierqi Station.

3. Walk about 10 meter to reach Xierqi Station.

4. Transfer to the subway 13 line and arrive at Dazhongsi Station after 5 stops.

5. Walk about 200 meters to Dazhongsi subway station.

6. Transfer to Inner Ring Road 368 at Dazhongsi Station, and arrive at Anzhen Bridge East Station after 6 stops.

7. Walk about 250 meters to China Merchants Bank North Third Ring Sub-branch.

If the operation of the above subway lines is adjusted, you can consult the official hotline of the subway or check the latest line information through the subway official website to plan a suitable travel route.