Does the questioner want to ask "Which subway line can I take to Wangfujing, Harbin?"

Take Metro Line 3.

According to the official website of Harbin Metro, we learned that we can take Metro Line 3 to Wangfujing, Harbin.

Harbin Wangfujing is located on Jingjiang East Road, Daoli District, Harbin City, Heilongjiang Province. It is a one-stop consumer experience shopping mall built by Beijing Wangfujing Group in Harbin.