We　propose　an　efficient　scheme　to　prepare　W　state　of　superconducting　(SC)　qubits　in　spatially　separated　coplanar　waveguide　(CPW)　resonators　via　adiabatic　passage.　The　CPW　resonators,　each　trapping　a　SC　qubit,　are　coupled　only　by　a　superconducting　coupler　(SCC)　qubit.　Based　on　a　circuit　quantum　electrodynamics　system,　our　scheme　can　be　controlled　and　implemented　easily　in　experiment.　As　a　model　of　a　plurality　of　separated　cavities　coupled　to　a　SCC　qubit,　our　protocol　can　be　useful　in　scalable　distributed　quantum　networks.　By　introducing　adiabatic　passage　into　our　model,　there　is　no　need　to　control　the　Rabi　frequency　of　classical　field　and　the　interaction　time　precisely　during　the　whole　operation.　Also,　the　dissipation　from　the　resonators　and　the　energy　relaxation　can　be　omitted　approximately.