The utility model discloses a three shaft vibration test device of non -contact, the device include testing system base, proof box, excitation electromagnetism iron group and supplementary suspension. The testpieces is installed in the proof box and is carried out the trim for the whole barycenter of proof box is located its geometric centre department, the proof box is whole puts through assisting the suspension to make it be in quiet power balanced state and lie in vibration central point, through electric magnetic force realization non -contact three shaft vibration s of proof box with the relative three excitation electromagnetism iron group that sets up of the three orthogonal direction of testing system base, avoided the reliance to the decoupling zero device, be applicable to broadband vibration control.