The application provide a method for transmitting data in a wireless communication network. A terminal device obtains a first configuration signaling, wherein the first configuration signaling is used to determine a first resource occupied by first data in a first slot, then the terminal device obtains third configuration signaling, wherein the third configuration signaling is used to determine a second resource occupied by second data in the first slot. When at least one time domain symbol in the second resource is located in the first resource in the first slot, the terminal device determines data transmitted in the first slot based on a preset policy; wherein the first configuration signaling is used for scheduling of data in N slots, wherein the N slots comprise the first slot, and N is an integer greater than 1.