Abstract: The construction site of a deep foundation pit is narrow and the surrounding environments are complex, the work difficulty for supporting foundation pit is big, the technical and economic reasonable foundation pit supporting scheme with double-row piles was adopted. During foundation pit excavation and the use of pit, security and stability of slope and the surrounding environments were insured, the monitored maximum displacement was within the range of specified value. As a double-row pile supporting successful cases, it provides practical experience for reference for similar projects.