A method for implementing soft time reuse includes: selecting for a cell or sector at least one time slot as a primary time slot and at least another one time slot as a secondary time slot; using the primary time slot at the border of the cell or sector; setting a first transmit power threshold for the primary time slot; setting a second transmit power threshold for the secondary time slot; the primary time slot selected for the cell or sector and a primary time slot selected for another cell or sector adjacent to the cell or sector are non-overlapped, and the first transmit power threshold is higher than the second transmit power threshold. A system is also provided by the embodiments of the present invention. The system and method reduce the interference between cells or sectors effectively and