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In this paper,the aperture averaged scintillations of the Bessel beams carrying different numbers of optical vortices propagating in turbulent atmosphere are evaluated.The multistep form of the propagation algorithm and a numerical phase screen simulation method are applied to the calculations of the scintillation.The results shows that the Bessel beam with more optical vortices delivers the smaller scintillation.The relation of the aperture averaged scintillation and the size of the beams is investigated.