With　the　development　of　the　laser　technology,　electronic　technology,　as　well　as　computer　technology,　the　traditional　laser　power　measurement　couldn＇t　meet　the　demand.　We　design　a　new　type　of　laser　power　measurement　for　the　high　power　and　intelligent　measuring:　compared　with　the　traditional　one-sensor　laser　power　measurements,　we　select　three　different　kinds　of　sensors　which　are　the　thermocouple,　photoelectric　cell　and　flow　meter　to　get　multi-signals.　We　use　the　thermocouple　and　flow　meter　in　order　to　calculate　the　power　of　the　laser,　and　photoelectric　cell　is　used　to　depict　the　waveform　of　the　laser　pulse.　The　processing　system　is　based　on　the　AVR　embedded　system　which　includes　signal　sampling,　data　storage,　algorithmic　processing　and　both　the　waveform　and　the　numerical　results　displaying,　meanwhile　the　system　connects　and　uploads　the　data　to　the　computer,　finally　realizes　the　functions　of　data　processing　and　saving　for　the　further　research.　During　the　working　time　of　the　laser,　the　system　can　monitor　the　power　and　energy　in　real　time;　calculate　the　results　of　the　power,　energy　and　other　significant　parameters,　show　the　waveform　as　well.　The　figures　of　the　system　are　that　substituting　the　metal　senor　for　the　flow　water　sensor　which　realizes　the　higher　power　and　energy　measurements;　using　multi-channel　sensors　that　get　the　power,　energy　and　waveform　results;　introducing　the　AVR　processor　which　ensure　high　speed　processing　and　the　reliability　of　the　system.　The　real-time　algorithm　makes　the　A/D　sampling　of　the　three-channel　sensors　in　time,　and　the　integral　compensation　algorithm　makes　the　results　more　precise.　The　last,　the　method　of　＇inner　loop＇　and　＇outer　circle＇　meet　the　different　demand　of　the　measurement　which　makes　you　have　more　choices.　In　practice,　due　to　the　interference,　we　also　put　efforts　to　solve　the　interference　of　the　power　supply　and　the　electro-magnetic　interference　(EMI).　©　2009　SPIE.