Abstract: In order to choose the optimal artificial lift method in WZ oilfield, based on the reservoir characteristics and production requirements at the end of oil well flush stage, the technological adaptability evaluation index system is established by analyzing affecting factors such as downhole features, reservoir characteristics, etc. The System Hierarchical Fuzzy Optimization model is used to accomplish this task. As a result, the electric submersible pump is chosen to be the optimal artificial lift method for WZ oilfield. The result shows that the evaluation result of applying this strongly operable model to choose optimal artificial lift method is comprehensive and reliable, which can provide reference for similar oilfields in oil production mode optimization.