The present invention provides a mosquito number monitoring device, comprising: a housing having an accommodating space therein； and the accommodating space is provided with at least one illuminating element, and at least one side of the housing is provided with an opening, the opening is It is connected to the accommodating space. a mosquito trapping unit having at least one boosting circuit electrically connected to at least one power grid, the boosting circuit and the power grid being disposed in the accommodating space, and the power grid corresponding to the opening, the boosting The circuit provides for setting a predetermined voltage output value. A monitoring unit has a control circuit and at least one first wireless signal component. The control circuit is electrically connected to the power grid, and the control circuit records the number of voltage changes of the power grid. And a mobile electronic device having a processor, a memory, a touch screen and a second wireless signal component, wherein the memory is equipped with a mobile application, the first wireless signal component and the second wireless The signal component is wired, and the number of voltage changes is transmitted to the mobile application and displayed on the touch screen.本新型蚊蟲數量監測裝置，其包括：一殼體，其內部具有一容置空間，且該容置空間內設有至少一發光元件，該殼體的至少一側上設有一開口，該開口係與該容置空間連通。一捕蚊單元，其係具有至少一升壓電路，並電性連接至少一電網，該升壓電路及該電網係設於該容置空間內，且該電網係與該開口對應，該升壓電路係提供設定一預定電壓輸出值。一監測單元，其係具有一控制電路及至少一第一無線訊號元件，該控制電路與該電網電性連接，並由該控制電路紀錄該電網的電壓變化次數。以及一行動電子裝置，其係具有一處理器、一記憶體、一觸控螢幕及一第二無線訊號元件，該記憶體中安裝有一行動應用程式，該第一無線訊號元件與該第二無線訊號元件進行連線，將該電壓變化次數傳輸至該行動應用程式中，並顯示於該觸控螢幕上。
