Is there any shuttle bus that stop near Kazy International Youth Hostel, Harbin?

Yes, here is the way from airport:
take shuttle bus line 3 to Central Avenue (Zhongyang Dajie) Station for CNY20. Walk northeast along Jingwei Erdao Street for about 250 yards, and turn left. Walk northwest along Jingwei Street for about 500 yards, and turn right. Walk east for about 100 yards to the hostel.