Abstract: The sensitivity of each parameter to the well testing curve is analyzed by solving triple-continuum numerical well testing model of fractured vuggy reservoir，and the parameter system of this numerical well testing model is determined.These parameters are corresponding to permeability，size and length of cave and fracture and so on.Different parameters have different influences on curve：initial formation pressure and fracture permeability have influence on the position of pressure build-up curve，skin factor；the well bore storage factor mainly has influence on the shape of early stage of pressure build-up curve，and other parameters have influence on the shape of the two turnings of the curve.All of these conclusions are very important for matching well testing curve.

Key words: fractured vuggy, triple-continuum, numerical well testing, sensitivity, influencing factors