Abstract: The parameters of four typical irradiated growth experience models for N36 zirconium alloy cladding were calculated by using partial pool side examination data of N36 zirconium alloy cladding fuel rods in the reactor. The results show that the hyperbolic tangent empirical model is the most suitable for describing the irradiation growth behavior of N36 zirconium alloy cladding in four typical irradiation growth experience models. Based on the hyperbolic tangent empirical model, the nominal model and bound model for the irradiation growth of N36 zirconium alloy cladding were established. By adding engineering factors, the experience model of irradiation growth for N36 zirconium alloy cladding with different processing technologies was established. The experience model of N36 zirconium alloy cladding was validated by using the rest data of the pool side examination, and the model is in good agreement with the data.