Interference　analysis　is　crucial　for　the　frequency　sharing　between　satellite　services　according　to　the　regulations　and　recommendations　of　International　Telecommunications　Union　(ITU).　For　the　fixed-satellite　service　(FSS)　earth　stations　of　our　neighboring　country　in　8025-8400　MHz　frequency　band,　the　interference　problems　of　FSS　earth　stations　into　earth　exploration-satellite　(EESS)　service　earth　stations　in　specific　link　scenario　are　discussed　via　theoretical　analysis　and　simulation　calculation　in　this　paper.　The　simulation　results　show　that　the　interference　of　FSS　earth　stations　into　EESS　earth　stations　currently　registered　at　ITU　meets　the　limit　value　of　the　recommendations,　however　the　interference　into　the　assumed　EESS　earth　station　cannot　meet　the　limit　value.　The　analyzed　and　simulated　results　can　be　references　for　the　international　coordination　between　the　earth　exploration　satellite　systems　and　communication　satellite　systems　of　neighboring　countries　in　this　band.　©　2019　IEEE.