The invention provides a power grid high voltage switch cabinet connection method. According to the technical scheme, a handcart switch cabinet is a user protection-type incorporate device for a three-phase AC 50HZ single bus system, is used for receiving and being matched with 35KV network electric energy, and is directly used for being matched with an ZN23-35C vacuum circuit breaker and an SN10-35 oil-minimum circuit breaker. According to the selected main wiring, a wiring scheme is selected for a proper high voltage switch cabinet. A CG-1A(F)-type high voltage switch cabinet is only applied to 3 to 10KV, three-phase AC 50HZ is only used for enabling the single bus system and a single bus system with bypass to receive and distribute electric energy, and a wiring scheme is selected according to the selected main wiring. The method of the invention has the beneficial effects that the circuit can be controlled and protected well, the connection method is reasonable and practical, the operation is safe and quick, the work efficiency is improved, and general popularization and use are facilitated.