Abstract In order to reveal the environmental and radar parameter characteristics of a super hailstorm with hailstorms over 7cm and above, based on S-band dual-polarization radar data in Jining, combined with sounding and ground reality data, the environmental physical parameters, storm parameter evolution and polarization parameter characteristics of a super hailstorm in Tengzhou were analyzed.The results show that: (1) The Tengzhou severe hail storm occurred under strong convective effective potential energy and moderate intensity deep vertical wind shear environmental conditions,with relatively large temperature difference between 850 hPa and 500 hPa , drier middle and upper troposphere, warmer and wetter lower troposphere （2）Tengzhou supercell storm producing hail with a diameter of 7 cm or more has a lower average maximum reflectance factor (64.82 dBZ) due to the low concentration of larger hail, but with the higher C-VIL (average 82 kg·m-2), ZDR deep( average 2 km) and maximum rotation velocity of the medium cyclone (average 25.2 m?s?1) which mean that there is a strong updraft supporting larger hail. (3) The top height of the ZDR column continues to increase Indicating that the intensity of updrafts within the storm continues to strengthen and the storm will further develop, while the C-VIL remains above 80 kg·m-2, which has indicative significance for the occurrence and warning of severe hail.The C-VIL remains in the high-value area, indicating that the storm has abundant hail particles and a higher probability of experiencing severe hail.(4)During the vigorous stage of storm development, the strong echo thickness exceeding 60 dBZ is close to 8 km and the top reaches a height of about 10 km indicating that large hail has been generated in the upper layers, at the same time, hail descended to the lower layers,that revealed the mechanism of sustained development of hail clouds and continuous hail on the ground.