An information transmission method and an apparatus are provided. In the information transmission method, a first device determines resource requirement information, where the resource requirement information indicates a requirement of the first device for a required BM resource, and the resource requirement information includes one or more of the following: a real-time performance requirement, a pooling requirement, a sharing requirement, a security requirement, and a mobility requirement. The first device sends the resource requirement information to a second device. The second device allocates, to a BM resource instance, a BM resource meeting the resource requirement information. It can be learned that the BM resource allocated by the second device to the BM resource instance meets the requirement of the first device for the BM resource.