In order to reduce the complexity of the sensor structure and improve the sensitivity of the sensor temperature, a dual-side throw D-type photonic crystal fiber surface plasmon resonance(SPR) temperature sensor with regular hexagon and regular octagon cladding is proposed. By using COMSOL multiphysics finite element simulation software, the influence of polarization direction, air aperture and silver film thickness on the performance of the sensor is studied respectively, and the optimal value of each data is found out. Based on this, the temperature sensing characteristics of the sensor are analyzed. The simulation results show that when the cladding air hole d1=1 ?滋m,d2=0.5 ?滋m, and the thickness of the metal silver film tAg=35 nm, the performance of the sensor is the best, and the maximum temperature sensitivity of the sensor can reach -7.99 nm/℃ at 0~120 ℃.