A method for determining beam information, performed by a user equipment and comprising: in a case that a first cell and/or bandwidth part, BWP in which a resource configured for a source reference signal is located, is different from a second cell and/or BWP in which a target communication resource is located, determining, based on configuration information of the target communication resource, first information of the source reference signal in the second cell and/or BWP, in which the target communication resource is located, wherein the source reference signal is associated with the target communication resource; and determining beam information of the target communication resource based on the first information; characterized in that the first information comprises resource information of the source reference signal in the second cell and/or BWP in which the target communication resource is located, and the configuration information comprises a resource quantity A and a resource start position B that are of the source reference signal; and the determining, based on configuration information of the target communication resource, first information of the source reference signal in the second cell and/or BWP in which the target communication resource is located comprises: if B is less than a resource start position N start of the second cell and/or BWP in which the target communication resource is located, determining a resource start position C of the source reference signal in the second cell and/or BWP in which the target communication resource is located to be equal to N start; otherwise, determining C to be equal to B; and if A is greater than S+N start -C, determining a quantity D of resources of the source reference signal in the second cell and/or BWP in which the target communication resource is located to be S+N start -C; otherwise, determining D to be equal to A, wherein S is a quantity of resources of the second cell and/or BWP in which the target communication resource is located. in a case that a first cell and/or bandwidth part, BWP in which a resource configured for a source reference signal is located, is different from a second cell and/or BWP in which a target communication resource is located, determining, based on configuration information of the target communication resource, first information of the source reference signal in the second cell and/or BWP, in which the target communication resource is located, wherein the source reference signal is associated with the target communication resource; and determining beam information of the target communication resource based on the first information; characterized in that the first information comprises resource information of the source reference signal in the second cell and/or BWP in which the target communication resource is located, and the configuration information comprises a resource quantity A and a resource start position B that are of the source reference signal; and the determining, based on configuration information of the target communication resource, first information of the source reference signal in the second cell and/or BWP in which the target communication resource is located comprises: if B is less than a resource start position N start of the second cell and/or BWP in which the target communication resource is located, determining a resource start position C of the source reference signal in the second cell and/or BWP in which the target communication resource is located to be equal to N start; otherwise, determining C to be equal to B; and if A is greater than S+N start -C, determining a quantity D of resources of the source reference signal in the second cell and/or BWP in which the target communication resource is located to be S+N start -C; otherwise, determining D to be equal to A, wherein S is a quantity of resources of the second cell and/or BWP in which the target communication resource is located. if B is less than a resource start position N start of the second cell and/or BWP in which the target communication resource is located, determining a resource start position C of the source reference signal in the second cell and/or BWP in which the target communication resource is located to be equal to N start; otherwise, determining C to be equal to B; and if A is greater than S+N start -C, determining a quantity D of resources of the source reference signal in the second cell and/or BWP in which the target communication resource is located to be S+N start -C; otherwise, determining D to be equal to A, wherein S is a quantity of resources of the second cell and/or BWP in which the target communication resource is located.