The utility model relates to a narrow slit storage cabinet, which comprises a cabinet body, a first cabinet door, a second cabinet door and a third cabinet door, the cabinet body comprises two oppositely arranged wide parts and two oppositely arranged narrow parts, the length of the wide parts is greater than that of the narrow parts, the first cabinet door and the third cabinet door are respectively positioned on the two wide parts, and the first cabinet door and the second cabinet door are respectively positioned on the two narrow parts. The second cabinet door is located on the narrow portion, and the first cabinet door, the second cabinet door and the third cabinet door can be opened relative to the cabinet body. Compared with the prior art, the first cabinet door and the third cabinet door are arranged on the two wide parts respectively, and the second cabinet door is arranged on the narrow part, so that the object taking mode of the cabinet body is more flexible, and the situation that objects are tilted and scattered when taken is reduced; when the cabinet body is located in the crack, the second cabinet door is opened for fetching objects; when articles needing to be taken are located at the position, away from the second cabinet door, of the cabinet body, the cabinet body is pulled out of the crack, the first cabinet door or the second cabinet door is opened, and the articles are convenient to take.