This paper proposed a coupled clocking array architecture based on hierarchical bufferless resonant clock, which can distribute global clock signal effectively, and implement locking of frequency and phase among local clock networks. Based on the theory of coupled oscillators, the voltage amplitude, frequency locking and network bandwidth characteristics of the coupling network were analyzed. By SPICE simulation, the key factors influencing the coupling characteristics of the resonant clocking array were studied, including clock load difference, energy compensating cell, and coupling network. Simulation results show that the resonant clocking array has a wide frequency locking range, and in the case of coupling characteristics change, the maximum clock skew in global clocking network is 21 ps, less than 2% of the whole clock cycle.