Based　on　the　on-site　monitoring　data　of　deformation　and　electromagnetic　radiation　of　Zhongyi　Railway　Tunnel　of　Lijiang-Shangrila,　a　statistical　analysis　was　done　on　the　characteristics　of　electromagnetic　radiation,　the　relationship　between　the　events　of　maximum　peaks　of　EME　intensity　(N)　and　horizontal　convergence　deformation,　and　the　relationship　between　the　events　of　maximum　peaks　of　EME　intensity　exceeding　the　average　intensity　(M)　and　horizontal　convergence　deformation　during　the　deformation　of　the　tunnel.　The　results　show　that:　1)　The　maximum　average　value　of　electromagnetic　radiation　intensity　(E)　increased　with　deformation　expanding　before　the　initial　support　yielded,　while　there　was　an　opposite　trend　after　the　initial　support　yield　failure.　The　turning　time　point　of　rising　first　and　then　falling　of　the　maximum　average　value　of　electromagnetic　radiation　intensity　was　close　to　the　initial　support　yielding.　2)　The　events　fluctuation　rate　of　maximum　peaks　of　EME　intensity　(VN)　and　maximum　peaks　of　EME　intensity　exceeding　the　average　intensity　(VM))　were　positively　correlated　with　convergence　deformation　rate　of　the　tunnel.　There　were　positively　linear　relationships　between　the　percentage　of　events　of　the　maximum　peaks　of　EME　intensity　(λN),　the　maximum　peaks　of　EME　intensity　exceeding　the　average　intensity　(λM))　and　the　cumulative　deformation　of　the　tunnel　as　well.　Research　conclusions　are　important　in　the　perspective　of　advancing　the　understanding　of　electromagnetic　radiation　characteristics　during　the　deformation　process　of　underground　cavern　and　enhancing　the　field　application　level　of　monitoring　technology　of　electromagnetic　radiation.　©　2020,　Science　Press.　All　right　reserved.