A method for transmitting a channel performed by a network device, comprising: dividing a resource for transmitting a control channel into N resource blocks; and sending, on a first resource block among the N resource blocks, a downlink control channel to a terminal device by using a beam corresponding to the first resource block, the N being a positive integer; characterized in that a scrambling code of the downlink control channel and/or a Demodulation Reference Signal, DMRS, sequence are/is generated based on at least one of the following identifiers: an identifier of the first resource block, a beam identifier corresponding to the first resource block, the DMRS sequence being configured for demodulating the downlink control channel; wherein before sending, on the first resource block among the N resource blocks, the downlink control channel to the terminal device by using the beam corresponding to the first resource block, further comprising: determining multiple beams adopted to send the downlink control channel; and determining, according to a public beam identifier, the first resource block corresponding to the multiple beams, the public beam identifier being generated based on an identifier of each beam in the multiple beams or being configured for the multiple beams by a network device; and sending, on the first resource block among the N resource blocks, the downlink control channel to the terminal device by using the beam corresponding to the first resource block comprises: sending, on the first resource block, a specific downlink control channel of the terminal device and/or a public downlink control channel to the terminal device by using the multiple beams. dividing a resource for transmitting a control channel into N resource blocks; and sending, on a first resource block among the N resource blocks, a downlink control channel to a terminal device by using a beam corresponding to the first resource block, the N being a positive integer; characterized in that a scrambling code of the downlink control channel and/or a Demodulation Reference Signal, DMRS, sequence are/is generated based on at least one of the following identifiers: an identifier of the first resource block, a beam identifier corresponding to the first resource block, the DMRS sequence being configured for demodulating the downlink control channel; wherein before sending, on the first resource block among the N resource blocks, the downlink control channel to the terminal device by using the beam corresponding to the first resource block, further comprising: determining multiple beams adopted to send the downlink control channel; and determining, according to a public beam identifier, the first resource block corresponding to the multiple beams, the public beam identifier being generated based on an identifier of each beam in the multiple beams or being configured for the multiple beams by a network device; and sending, on the first resource block among the N resource blocks, the downlink control channel to the terminal device by using the beam corresponding to the first resource block comprises: sending, on the first resource block, a specific downlink control channel of the terminal device and/or a public downlink control channel to the terminal device by using the multiple beams. determining multiple beams adopted to send the downlink control channel; and determining, according to a public beam identifier, the first resource block corresponding to the multiple beams, the public beam identifier being generated based on an identifier of each beam in the multiple beams or being configured for the multiple beams by a network device; and sending, on the first resource block among the N resource blocks, the downlink control channel to the terminal device by using the beam corresponding to the first resource block comprises: sending, on the first resource block, a specific downlink control channel of the terminal device and/or a public downlink control channel to the terminal device by using the multiple beams.