Equipment cabinet and data computing system thereof

The utility model relates to an equipment cabinet and a data computing system of the equipment cabinet. The equipment cabinet comprises a cabinet body frame. Installation stand columns are arranged inside the cabinet body frame. Lateral plugging pieces used for controlling the circulating state of refrigeration airflow of the side face of electrical equipment inside the equipment cabinet are arranged between the installation stand columns and the cabinet body frame, and/or top and bottom plugging pieces used for controlling the circulating state of refrigeration airflow of the electrical equipment in the vertical direction are arranged on the upper and lower surfaces of the electrical equipment. According to the equipment cabinet, the lateral plugging pieces are adopted to control the circulating state of the refrigeration airflow of the side face of the electrical equipment so as to improve the refrigeration efficiency of the electrical equipment with a left air inlet and a right air outlet or the electrical