The invention discloses a ring net cabinet of a novel interlocking structure. The ring net cabinet comprises a cabinet body, a cabinet door, the interlocking structure and a load switch. The load switch comprises a switch main shaft, an intermediate shaft and a disconnecting link. The disconnecting link is fixedly arranged on the intermediate shaft which is connected with an inner end opening of the switch main shaft. The interlocking structure comprises an interlocking plate, a baffle and a pin block. A pin hole is formed in the middle of the pin block which is located between the cabinet door and the baffle and fixed on the back of the cabinet door, the interlocking plate can be inserted in the pin hole of the pin block along with the rotation of the switch main shaft, and the baffle is hinged to the inner top end of the cabinet body and can move front and back. When the cabinet door is opened, the baffle and the interlocking plate are located on the same cross section, the horizontal length of the interlocking plate is L1, the longitudinal length of the interlocking plate is L2, the horizontal distance between the interlocking plate and the center of the pin block is H1, the longitudinal distance between the interlocking plate and the center of the pin block is H2, L1 is equal to H1, and L2 is larger than H2. The ring net cabinet can simplify the interlocking structure, enable links to be reduced, and improve reliability.