A medical pendant box body (10) and a post (2) used for the medical pendant box body (10). The medical pendant box body (10) comprises at least two panels (1), at least two posts (2) extending along the longitudinal direction of the medical pendant box body (10)., an upper base plate (3) and a lower base plate (4). The at least two panels (1) are respectively fixed to the at least two posts (2), and the upper base plate (3) and the lower base plate (4) are respectively fixed to an upper edge and a lower edge of each panel (1) within the at least two panels (1). At least one post (2) within the at least two posts (2) is provided with an electrical interface. The electrical interface comprises an inner groove (21) located on the post (2) and extending along the longitudinal direction of the post (2), an insulator (22) accommodated within the inner groove (21), and a conductor (23) sealed within the insulator (22). The medical pendant box body (10) and the post (2) used for the medical pendant box body (10) have the following advantageous technical effects: a standardised interface can be provided, it is not necessary to connect electrical cables in a complicated manner, disassembly is easy, and the position of a medical accessory can be freely adjusted.