The utility model provides a coupling capacitive divider with a shielding capacitor core. The divider comprises a sleeve, an umbrella skirt, a primary wiring board and a pedestal, wherein the umbrella skirt wraps the sleeve, and the primary wiring board and the pedestal are mounted at the two ends of the sleeve respectively. The shielding capacitor core and a main capacitor core which is arranged in the shielding capacitor core are coaxially mounted in the sleeve. On the basis that the total capacity of the coupling capacitive divider is decreased, the stability of the intrinsic standoff ratio of the divider is ensured, and the comprehensive performance of an EVT is effective enhanced.