Using acousto-optic modulator (AOM) to control laser frequency, switch light and generate modulation sideband is a common technical means, which is often used in optical systems of quantum optics, cold atoms, ion traps, quantum calculation and quantum precision measurement. Double Pass acousto-optic modulation is that the laser passes through AOM twice, and the +1st order diffracted light passes through AOM twice to obtain a double modulated laser signal. Optical fiber coupled acousto-optic Double Pass integrated module can realize double modulation of sum and arbitrary laser, and output double modulated Double Pass laser signal. The input and output are optical fiber coupled output, and the wavelength can be customized at 400-1100nm.