In　this　paper,　an　implantable　optogenetics　light　source　driving　circuit　system　is　developed　to　realize　in　vivo　modulation　of　micro-neurons　such　as　vision　and　hearing.　First,　a　4×4　LED　light　source　array　is　designed;　then　a　light　source　driving　circuit　is　designed,　which　includes　a　band　gap　reference　voltage　source　circuit　and　a　low　dropout　linear　regulator　circuit;　second,　a　single-point　control　circuit　and　a　PWM　control　circuit　are　designed.　The　simulation　results　show　that　the　system　can　realize　the　control　of　current,　light　intensity　and　other　parameters　of　single-point　and　multi-point　light　sources,　and　through　this　effective　and　precise　light　source　control　can　effectively　stimulate　the　neurons　of　living　organisms,　and　the　light　driving　system　designed　in　this　system　has　certain　guiding　significance　for　the　research　of　optogenetics　applied　to　vision.　©　2022　IEEE.