Abstract: A coupled transient thermo-hydraulic model is developed to describe the fluid flow and heat transfer, considering the effects of heat conduction and convection caused by a fracturing fluid flow. The developed model is solved by finite difference approach. The DTS temperature behavior and characteristics are studied by conducting a sensitivity analysis of crucial parameters (i.e., pumping rate, fracturing time, shut-in time, and leakoff coefficient). The results show that the V-shape characteristic can be observed by the DTS temperature profile along the horizontal wellbore, whose location is corresponding to that of the created fracture. The depth of the V-shape is shallower for a higher injection rate and longer shut-in time. Also, the V-shape is wider for a higher leakoff coefficient and longer fracturing time. Finally, DTS data of a fractured horizontal well from Changqing oilfield is interpreted by the proposed method. The fracture parameters such as fracture half-length and fracture width, are successfully obtained, verifying the method’s feasibility and practicability. This study demonstrates that the dynamic fracture parameters during the multi-staged fracturing treatments along a horizontal well can be interpreted based on the distributed temperature sensing (DTS) measurements.