The invention discloses a method for transmitting broadcast services hierarchically, comprising the steps of: layering the broadcast services in accordance with space regions, wherein data of the broadcast services at different layers is loaded on different groups of prearranged code channels; transmitting the data of the broadcast services loaded on the prearranged code channels according to a prearranged transmission power. Meanwhile, the invention further discloses a device for transmitting broadcast services hierarchically. The embodiment of the invention guarantees that both user terminals at a central region and user terminals at an edge region can receive the data of the broadcast services from a fundamental layer, and that subscribers in the broadcasting central region can receivethe data of the broadcast services from the fundamental layer and an enhancement layer, and the invention avoids the situation that the user terminals, which are located at the broadcasting central region and supposed to receive the broadcast services with better quality, only can receive the broadcast services with inferior quality in consideration of the quality of the broadcast services that the user terminals at the edge region receive.