In　order　to　realize　the　real-time　processing　and　display　control　of　multi-channel　high-definition　digital　video,　this　paper　proposes　an　embedded　solution　for　real-time　processing　of　multi-channel　high-definition　digital　video　based　on　FPGA　(Field　Programmable　Gate　Array).　The　overall　system　design　includes　three　parts:　hardware　platform　design　with　MicroBlaze　as　the　core　controller,　software　application　design　and　OSD　(On　Screen　Display)　display　control　design.　The　system　proposed　in　this　paper　implements　the　encoding,　decoding,　scaling　and　overlay　of　multiple　high-definition　video　streams　in　a　single　FPGA　embedded　with　MicroBlaze,　which　improves　the　system　integration.　Through　the　design　of　the　OSD　control　layered　architecture,　the　information　interaction　between　the　keystrokes　and　the　OSD　image　interface　is　realized,　and　four　video　display　parameters　can　be　configured　on　the　screen.　Experiments　show　that　the　system　proposed　in　this　paper　can　process　and　display　four　high-definition　video　streams　in　real　time,　with　an　output　frame　rate　of　60　frames/s.　Compared　with　the　current　mainstream　video　fusion　system　solutions,　the　system　integration　level　has　been　improved.　©　2021　ACM.