TSC pipe pile bending capacity is an important index of the pile foundation design.Current JG/T 272—2010 in bending strength calculation is on the basis of DL/T 5030—1996 standard,and the wall thickness of concrete according to DL/T 5030—1996 has strict rules whose application in the TSC pipe pile is up for debate.This paper has carried on the theoretical derivation of TSC bearing capacity.Bending strength calculation method of pipe pile is established.At the same time comparison and analysis is made with the current standard values.The calculation results show that the theoretical formula of bending strength which built in this paper matches well with the standard values,and it can be used in the TSC pipe pile flexural strength calculation.