In order to obtain fracturing fluid with high temperature resistance，a gemini surfactant was synthesized with stearic acid，oxalic acid，N， N-dimethylbenzene-1， 4-diamine，N， N'-（ethane-1， 2-diyl） diethane-1， 2-diamine and 1， 3-dichloro-2-propanol as the materials. Using this gemini surfactant as viscosifier，a cleaning fracturing fluid was prepared by mixing ammonium chloride solution and gemini surfactant. The performance of cleaning fracturing fluid（3% gemini surfactant+1% NH₄C1），such as heat and shear resistance，sand-carrying property，gel-breaking property and so on，was investigated. The results showed that comparing with guargum fracturing fluid，this cleaning fracturing fluid was thermally stable and had good temperature and shear resistance. The viscosity of cleaning fracturing fluid was 88 mPa·s at 120℃，which could meet the requirement of high temperature oil and gas field. The sedimentation rate of seed in cleaning fracturing fluid was 0.79 mm/s at 120℃ ，which indicated that the cleaning fracturing fluid had a good sand-carrying performance. The compatibility between cleaning fracturing fluid and formation fluid was good. The cleaning fracturing fluids would break automatically when it encountered lamp kerosene，without adding gel breaker， which was very convenient to use.