Example methods and apparatus for switching an analog beam are described. One example method includes transmitting a data channel by a terminal by using a first analog beam. The terminal determines that a second analog beam is a target beam to be switched to. The terminal transmits a related signal of the data channel by using the second analog beam. The terminal transmits a data channel by using the first analog beam. The terminal switches from the first analog beam to the second analog beam to transmit the data channel in response to determining that a specified condition is met.