A resource management method, comprising: receiving, by a terminal device, a plurality of beams sent by a network device; determining, by the terminal device, a correlation of at least two beams in the plurality of beams based on index numbers of the at least two beams; and reporting, by the terminal device, the at least two beams to the network device, wherein a correlation between any two of the at least two beams meets a requirement of the network device; wherein the at least two beams comprise a first beam and a second beam, and the first beam and the second beam are any two beams in the at least two beams; and characterized in that the determining, by the terminal device, a correlation of at least two beams based on index numbers of the at least two beams comprises: determining, by the terminal device, a Hamming distance between the first beam and the second beam based on the index numbers of the first beam and the second beam; and determining, by the terminal device, the correlation between the first beam and the second beam based on the Hamming distance, wherein the numbering of the plurality of beams is such that after index numbers of the plurality of beams are converted into binary bit sequences, a quantity of different bits between binary bit sequences corresponding to index numbers of adj acent beams is the smallest. receiving, by a terminal device, a plurality of beams sent by a network device; determining, by the terminal device, a correlation of at least two beams in the plurality of beams based on index numbers of the at least two beams; and reporting, by the terminal device, the at least two beams to the network device, wherein a correlation between any two of the at least two beams meets a requirement of the network device; wherein the at least two beams comprise a first beam and a second beam, and the first beam and the second beam are any two beams in the at least two beams; and characterized in that the determining, by the terminal device, a correlation of at least two beams based on index numbers of the at least two beams comprises: determining, by the terminal device, a Hamming distance between the first beam and the second beam based on the index numbers of the first beam and the second beam; and determining, by the terminal device, the correlation between the first beam and the second beam based on the Hamming distance, wherein the numbering of the plurality of beams is such that after index numbers of the plurality of beams are converted into binary bit sequences, a quantity of different bits between binary bit sequences corresponding to index numbers of adj acent beams is the smallest. determining, by the terminal device, a Hamming distance between the first beam and the second beam based on the index numbers of the first beam and the second beam; and determining, by the terminal device, the correlation between the first beam and the second beam based on the Hamming distance, wherein the numbering of the plurality of beams is such that after index numbers of the plurality of beams are converted into binary bit sequences, a quantity of different bits between binary bit sequences corresponding to index numbers of adj acent beams is the smallest.