Embodiments of the present invention provide a coordinated transmission method and a device. The method includes: communicating, by a UE, with a macro base station in a subframe in a first subframe set; and communicating, by the UE, with a micro base station in a subframe in a second subframe set; where the subframe in the first subframe set and the subframe in the second subframe set do not overlap. Technical solutions of the present invention solve a problem that application of a CoMP transmission technology is limited.