A　simplified　Photo-Electro　model　of　high　power　LED　is　proposed　in　this　paper.　Theoretical　derivation　of　this　model　and　optical　experiments　are　introduced.　The　variables　of　this　model　are　forward　voltage　U　and　forward　current　Id,　which　can　be　easily　obtained　and　controlled　in　LED　drivers.　The　validity　of　this　model　is　verified　through　two　kinds　of　typical　LED　chips　and　the　model　is　helpful　to　the　LED　driver　design　and　the　LED　strategy　study.　©　2015　IEEE.