The invention discloses a high-voltage high-current vacuum circuit breaker radiating structure. The radiating structure comprises a radiating guide rod mounted at the end part of a static conductive rod, and a multi-layered radiation type radiator mounted at the other end of the radiating guide rod and integrally moulded with the radiating guide rod; the space between the radiating guide rod and the upper end cover of the vacuum circuit breaker is sealed by a shaft sealing element; the radiating structure also comprises a fin radiator arranged on the outer periphery of a lower flange and extending out of the outer edge of the lower flange; and the fin radiator and the lower flange are integrally moulded. Due to the design mode, the radiating area of the circuit breaker can be effectively enlarged, the temperature rise is reduced, and the rated current of the high-voltage vacuum circuit breaker is obviously improved; and in addition, the high-voltage high-current vacuum circuit breaker radiating structure is simple in manufacturing process, low in cost and high in reliability.