The invention discloses a test judgment method of influence on coexistence among multiple groups of systems by a wireless power transmission system parameter. The method comprises the following steps:selecting the own parameters of a wireless power transmission system and parameters among multiple groups of systems, and analyzing test ranges of the parameters; testing magnetic field strength change of the wireless power transmission system in a certain range and the self-inductance and mutual-inductance parameters of the own primary secondary side coil of the wireless power transmission system through a control variable method, and testing magnetic field change when the inter-system distance is changed by changing the distance between a measurement point and the wireless power transmission system; and combining the magnetic field strength and the own coupling coefficient of the wireless system to obtain a new coefficient Q, and judging the influence on the inter-system coexistence bythe parameters; and selecting the parameter with low Q value as an advantage parameter so as to determine the wireless power transmission system with the minimum influence on the coexistence among multiple groups of systems. Through the method disclosed by the invention, the wireless power transmission system most suitable for the inter-system coexistence can be judged, and the model reference andthe method basis are provided for the construction of multiple wireless power transmission systems or large-scale wireless power transmission regions in the future.