The invention discloses a multi-degree-of-freedom experiment tool of a portable wireless electric energy transmission system. The multi-degree-of-freedom experiment tool comprises coil modules for the wireless electric energy transmission system, a multi-size coil module clamp, a separation type rotatable experiment table and a movable retractable experiment bracket, wherein the coil module for the wireless electric energy transmission system is used for winding wireless electric energy transmission harmonic oscillators at different frequency bands; the multi-size coil module clamp is suitable for clamping the coil modules with different thickness; the separation type rotatable experiment table can be used for fixing the coil module clamp and can drive the wireless electric energy transmission harmonic oscillators to do 360-degree deflection included angle experiments; and the movable retractable experiment bracket is used for supporting and fixing the rotatable experiment table and can be used for freely adjusting a transmission distance between the coils and a parallel deflection distance of the coils according to experiment requirements. The whole set of tool can be freely detached, assembled and expanded and can meet the multi-degree-of-freedom experiment requirements of the wireless electric energy transmission systems with different frequency bands and resonance Q values.