The invention relates to the technical field of communication and particularly relates to a resource sharing method and a resource sharing device; the resource sharing method and the resource sharing device are used for solving the problem of relatively low success rate of the existing resource sharing manner; the resource sharing method provided by the embodiment of the invention comprises the following steps: receiving shared resource finding request information sent from a first user terminal by a first router; finding a target user terminal capable of providing the shared resource requested by the first user terminal from each of the user terminals based on covering shared resource information of each of the user terminals by the first router; and if the first router finds the target user terminal capable of providing the shared resource requested by the first user terminal from each of the user terminals, sending the information of the found target user terminal to the first user terminal, and indicating the first user terminal to obtain the shared resource from the found target user terminal.