The present invention discloses a cabinet (100), including a first beam (10), a second beam (20), a cover plate (30), a bottom plate (40), an enclosure frame (50), and a door frame (60), where the first beam (10) is provided with a first groove (12) and a second groove (14); the second beam (20) is provided with a first slot (22) and a second slot (24); the door frame (60) is provided with a first fixing groove (62); the cover plate (30) is inserted into the first groove (12); the bottom plate (40) is inserted into the first slot (22); one end portion of the enclosure frame (50) is accommodated in the second groove (14), and the other end portion of the enclosure frame (50) is accommodated in the second slot (24); and a front end of the cover plate (30), a front end of the bottom plate (40), and a front end of the enclosure frame (50) are all inserted into the first fixing groove (62), so that the first beam (10), the second beam (20), the cover plate (30), the bottom plate (40), the enclosure frame (50), and the door frame (60) are assembled into the cabinet (100). According to the cabinet (100) provided in the present invention, the first beam (10), the second beam (20), the cover plate (30), the bottom plate (40), the door frame (60), and the enclosure frame (50) can be assembled into the cabinet (100) by using the first groove (12) and the second groove (14) of the first beam (10), the first slot (22) and the second slot (24) of the second beam (20), and the first fixing groove (62) of the door frame (60), thereby resolving a problem of heavy workload caused by overall welding of a cabinet in the prior art.