By　integrating　a　heart　rate　monitoring　module　and　a　step　frequency　monitoring　module,　this　study　aims　to　use　informatization　technology　to　monitor　the　exercise　level　of　students　in　public　physical　education　courses　and　to　adjust　the　teaching　methods　of　public　physical　education　courses　based　on　informatization　feedback.　A　school　had　332　students　divided　into　an　experimental　and　control　group　for　comparative　experiments.　Based　on　the　results　of　students＇　exercise　data　monitoring　by　heart　rate　oximetry　module　and　acceleration　sensor,　it　was　found　that　the　exercise　density　of　students　in　the　experimental　group　(73.3%)　was　much　higher　than　that　of　students　in　the　control　group　(54.4%),　which　means　that　the　students＇　exercise　status　was　better　under　the　informatization　teaching　mode.　During　the　experimental　period,　there　were　significant　differences　in　the　average　heart　rate　and　MVPA　percentage　time　between　the　experimental　group　and　the　control　group　students　(p　©　2024　Nengwei　Wu,　published　by　Sciendo.