A beam detection method and apparatus for solving the problem in the prior art of good communication quality for downlink beam detection being lacking. The beam detection method comprises: a user equipment receiving beam quality monitoring signals sent by a network device by using M beams; determining signal quality indicators of M beam quality monitoring signals, and determining, based on the signal quality indicator of each of the M beam quality monitoring signals, a beam quality indicator of a beam used for sending a beam quality monitoring signal; generating a first detection report which comprises at least one of indication information of at least one beam, the beam quality indicator of which does not meet a first threshold, from among the M beams, the beam quality indicator of the at least one beam, the beam quality indicator of which does not meet the first threshold, from among the M beams, indication information of at least one beam, the beam quality indicator of which meets a second threshold, from among the M beams, and the beam quality indicator of the at least one beam, the beam quality indicator of which meets the second threshold, from among the M beams; and sending the first detection report to the network device.