Hello! How can I get from the Harbin Airport to the Longtang Street (and back to the Airport?)

Take shuttle bus Rongchuang Line to Rongchuang city station, and take bus 126 from Central Theatre station to Datang Electronics station, and walk north of 600m to Longtang Street. It takes around 2 hours with CNY21.

When you go back, you can take shuttle bus 4 from Qianjin Daokou station to the airport station. It takes around 2 hours with CNY20.