For　the　safety　of　dairy　products,　the　quality　of　milk　(raw　milk)　is　particularly　important.　Because　temperature　influences　the　number　of　bacteria　in　raw　milk,　the　suitable　temperature　can　make　the　storage　time　of　raw　milk　longer.　Therefore,　the　realization　of　raw　milk　temperature　monitoring　system　is　particularly　important.　This　system　is　composed　of　hardware　design　and　software　design.　This　system　is　based　on　STM23F103　MCU　data　acquisition　and　web　page　design　based　on　Web.　The　system　can　accurately　display　the　real-time　temperature　of　each　monitoring　point,　The　monitoring　points　are　three　parts　of　the　production,　storage　(pre　cooling,　refrigeration)　and　transportation　of　raw　milk.　The　purpose　is　to　realize　the　temperature　monitoring　of　the　whole　chain　and　to　provide　data　basis　for　the　temperature　regulation　and　control.　The　purpose　of　the　system　is　to　realize　the　temperature　monitoring　of　the　Full-chain　and　to　provide　data　basis　for　the　temperature　control.　According　to　the　characteristics　of　the　milk　tanks,　the　unique　temperature　sending　decision　function　of　this　system　is　designed,　which　can　not　only　realize　the　real-time　performance　of　temperature　information,　but　also　reduce　the　power　consumption　and　flow　loss　of　the　sending　end.