Disclosed are a method and apparatus for indicating and determining a slot structure, the method comprising: a base station determining a structure in a slot; the base station indicating, in a dynamic or semi-static manner, the structure in the slot to a terminal; receiving the structure in the slot indicated by the base station, in the dynamic or semi-static manner, to the terminal; and the terminal determining the structure of one or more slots according to the indicated slot structure. By means of the present invention, when a future mobile communication system needs to provide lower network delay and support richer service types, a slot structure supported by the system is more flexible and diverse.