An uplink information processing method and an apparatus, the method including receiving, by a terminal device, first control information sent by a base station device in a first downlink transmission time interval, determining, by the terminal device, a time domain resource based on the first control information, where the time domain resource includes at least one uplink transmission time interval, where a start time unit of the time domain resource is later than the first downlink transmission time interval, and wherein the start time unit is a first uplink transmission time interval of the at least one uplink transmission time interval, and sending, by the terminal device, data information on an uplink data channel, where the uplink data channel corresponds to the at least one uplink transmission time interval in the time domain resource.