Tracing method of distribution of mobile ions in ionic migration spectrometer

The invention discloses a tracing method of distribution of mobile ions in an ionic migration spectrometer, wherein the tracing method includes the following steps: firstly, selecting a simple having a luminescent property as a tracing sample; secondly, ionizing the tracing sample with an ionization source, sending the tracing sample to a drift tube of the ionic migration spectrometer, and collecting ions of the tracing sample at a to-be-measured cross section by using an ion developing flat plate; and finally, treating the collected to-be-measured tracing particle ions on the developing flat plate by an appropriate means, making the ions emit light, and displaying a distribution map of movement positions of the ions on the to-be-measured cross section. The luminescence tracing way and charged ion movement under the ionic migration spectrometer are adopted to be combined, and position distribution of the charged ions under the ionic migration spectrometer can be more visually and practically mastered.