Enclosed switch cabinet and operation control method thereof

The invention provides a closed switch cabinet and an operation control method thereof. The closed switch cabinet comprises a reagent cavity and an electrical cavity, and the reagent cavity and the electrical cavity are sealed and separated; a control module and a dehumidification module are arranged in the reagent cavity, and an environment detection module is arranged in the electrical cavity; the control module is connected with the environment detection module and is used for at least detecting the humidity condition of the electrical cavity; the dehumidification module comprises a dehumidification box and an air pump, the dehumidification box is provided with an air inlet pipe and an air return pipe which are communicated with the electrical cavity, the air pump is connected with the air inlet pipe and/or the air return pipe, the control module is connected with the air pump, moisture absorption salt is arranged in the dehumidification box, and the moisture absorption salt and water molecules contained i