Abstract: A compact protective cartridge structure including a box body and a box cover pivotally with the box body. The box body is a flat rectangular box body a front side of which is formed with an opening. An upper face of the box body is formed with a slot within which a push block is slidable back and forth to drive a cartridge connected under the push block. The box cover is formed by two lateral walls and a front wall. The two lateral walls are formed with pivot shafts. A top face of the box cover is formed with an elongated window along the front wall. A compact disc can be received and clamped in the cartridge which is back and forth slidably received in the box body to facilitate placing, taking and carriage of the compact disc. The box cover achieves a dustproof effect and prevents the compact disc from dropping out.