The invention relates to an air conditioning device which comprises a panel and an air guide plate. The panel is provided with an opening. The air conditioning device further comprises a cover. The cover is provided with a first assembly part and a second assembly part. The opening is provided with a third assembly part and a fourth assembly part. The first assembly part is used for being detachably connected with the third assembly part, the second assembly part is used for being detachably connected with the fourth assembly part, and therefore the cover is detachably mounted at the opening so as to form a hole between the cover and the opening, wherein the hole allows a connecting rod assembly to penetrate, and the connecting rod assembly is used for driving the air guide plate to rotate so as to change the air output direction. By means of the arranged cover, the hole allowing the connecting rod assembly to penetrate can be formed by the panel and the cover, the connecting rod assembly can drive the air guide plate to rotate so as to change the air output direction conveniently, the opening can be protected, and the situation that small animals enter the air conditioning device, and consequently wires are damaged is avoided.