The development of negative skin friction experiences two stages. At the first stage, it is mainly controlled by the relative displacement between soil and pile, and at the second stage mainly controlled by the increasing of soil strength caused by consolidation. Based on the re‐analysis of data from history cases, relation between drag load and time can be fitted with hyperbolic curve, and the physical meanings of parameters are also preliminarily discussed. The calculated results on history cases indicate that the calculated curves are fitted well with the in‐situ tested data, which can verify the feasibility of the method presented in this paper.