A method for transmitting HARQ for uplink data in support of multi-frame scheduling is provided. The method includes a UE receiving a multi-subframe scheduling uplink grant signaling and PHICH information sent from a base station; for one uplink subframe, the UE processes parameters of uplink transmission according to uplink grant signaling which schedules a SHARQ process of the scheduled uplink subframe and a relative position of a PHICH channel; and the UE sends new uplink data, retransmitting data of the SHARQ to which the uplink subframe belongs, or currently does not send uplink data in the uplink subframe.