As　the　natural　“link”　between　the　atmosphere,　soil　and　water,　and　vegetation　plays　an　indicative　role　in　the　process　of　global　change　(Sun　et　al.　in　J　Remote　Sens　2(3):204–210,　[9]).　Vegetation　index　is　usually　used　for　the　study　of　land　cover,　vegetation　classification,　and　other　fields.　Among　them,　EVI　improved　the　disadvantages　of　NDVI,　including　atmospheric　noise,　to　better　reflect　the　spatial　difference　of　vegetation　cover.　In　this　paper,　MOD13A3　data　were　selected　to　study　the　spatial　and　temporal　pattern　and　changing　trend　of　EVI　in　the　Huang　Huai　Hai　plain　from　2001　to　2018.　The　results　are　as　follows:　(1)　In　2018,　the　maximum　EVI　value　of　the　Huang　Huai　Hai　plain　was　0.94,　showing　a　pattern　of　more　in　the　west　and　less　in　the　east.　The　year　was　divided　into　three　seasons:　spring,　summer,　and　autumn　with　the　maximum　value　in　summer.　(2)　EVI　fluctuated　slowly　in　the　last　18 years,　with　a　linear　growth　rate　of　0.28%/5a.　The　vegetation　in　more　than　half　of　the　study　area　showed　an　increasing　trend.　Although　there　was　partial　degradation,　the　overall　environment　developed　in　a　good　direction.　©　2020,　Springer　Nature　Singapore　Pte　Ltd.