The invention discloses a beam management method, a network device and a terminal. The method includes the following steps that: a network device configures sounding reference signal (SRS) resources for a terminal; the network device sends indication information to the terminal, wherein the indication information is used for instructing the terminal to transmit a transmitting beam used by SRSs ona selected SRS resource. With the beam management method, the network device and the terminal of the invention adopted, the transmitting beam of the terminal and the receiving beam of a base station can be managed more flexibly and efficiently, and the transmitting beam scanning of the terminal and/or the receiving beam scanning of the base station are implemented.