Laboratory displacement experiment of chemical steam flooding in different temperature regions has been carried out because of low oil displacement efficiency and sweep efficiency of the steam flooding in Zhongerbei Ng5 of Gudao oilfield，Shengli petroliferous province. There are three different temperature zones from the injection wells to the production wells：steam zone，hot water condensation zone and reservoir temperature zone. The displacement characteristics of the chemical steam flooding in different temperature regions were studied from displacement efficiency and injection pressure.The results show that foam produced by foaming agent solution could plug big channel in porous media and prevent steam breakthrough and superheating water fingering in the steam zone and hot water condensation zone. Injection pressure could be increased by 4.0 MPa and 1.6 MPa respectively at the best mass fraction of foaming agent（0.3%）in the steam zone and hot water condensation zone. In the reservoir temperature zone，the foaming agent and displacement agent only act as surfactant flooding and the displacement agent played important role in the driving process.