An uplink transmitting method for a user equipment (UE) for supporting a short transmission time interval (TTI) in a wireless communication includes receiving downlink control information including uplink grant, and when a transmitting timing of an uplink signal corresponding to the uplink grant and a transmission timing of a semi-persistent (SPS) uplink signal overlap with each other, if a TTI length of a first channel in which the uplink signal corresponding to the uplink grant is to be transmitted is longer than a TTI length of a second channel in which the SPS uplink signal is to be transmitted, performing uplink signal transmission only on the second channel of the first channel and the second channel at the transmission timing.