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We investigate the time-modulated electronic and spin transport properties through two T-shaped three-quantum-dot molecules embedded in an Aharonov-Bohm (A-B) interferometer.By using the Keldysh non-equilibrium Green’s function technique,the photon-assisted spin-dependent average current is analyzed.The T-shaped three-quantum-dot molecule A-B interferometer exhibits excellent controllability in the average current resonance spectra by adjusting the interdot coupling strength,Rashba spin-orbit coupling strength,magnetic flux,and amplitude of the time-dependent extal field.Efficient spin filtering and multiple electron-photon pump functions are exploited in the multi-quantum-dot molecule A-B interferometer by a time-modulated extal field.