Instrument bag for otology diagnosis and treatment

The utility model discloses an instrument bag for otology diagnosis and treatment. The packaging box comprises a first box body, a second box body and a buckling cover, wherein a first containing chamber is formed in the first box body, the second box body comprises a box body and a cofferdam part integrally arranged from the outer side of the box body, the lower portion of the box body sinks intothe first containing chamber, the cofferdam part covers the outer side of the first box body, and the cofferdam part can rotate relative to the first box body so that the second box body can be opened or closed relative to the first box body; the upper part of the second box body is sunken downwards to form a second accommodating chamber; the buckling cover is arranged on the second box body andis used for opening or closing the second accommodating chamber; the second box body can be opened or buckled relative to the first box body to form isolated storage spaces, disposable instruments forotology diagnosis and trea