The present invention provides a mosquito killing device, in particular, electrically connected to a preset mosquito number detecting device, which comprises a pressurizer, a solenoid valve and first and second conveying pipes. The input end of the pressurizer is coupled to the solenoid valve, and the solenoid valve is coupled to the first and second storage slots, and the output ends of the pressurizer are coupled to the first and second transfer tubes, respectively. Therefore, when the mosquito number detecting device detects that the number of mosquitoes is higher than a preset value, the mosquito number detecting device controls the pressurizer and the solenoid valve to be activated, respectively, and is first formed by the solenoid valve and the first storage tank. Passing and spraying the spray in the first storage tank through the pressurizer and the first nozzle of the first conveying pipe to be located at a high position for first slamming the mosquitoes； and then forming a passage between the electromagnetic valve and the second storage tank The mosquito killing agent in the second storage tank is sprayed through the pressurizer and the second nozzle of the second conveying pipe to be located at a low position for spraying mosquitoes to effectively eliminate mosquitoes.本創作係提供一種蚊蟲滅殺裝置，尤指與一預設之蚊蟲數量偵測裝置電性連接，其包括有加壓器、電磁閥及第一、二輸送管。加壓器之輸入端與電磁閥連結，再由電磁閥與預設之第一、二儲存槽連結，且加壓器之輸出端分別與第一、二輸送管連結。藉此，當蚊蟲數量偵測裝置偵測到蚊蟲數量高於一預設值時，由蚊蟲數量偵測裝置分別控制加壓器及電磁閥呈啟動狀態，先由電磁閥與第一儲存槽形成通路並令第一儲存槽內之噴灑劑經由加壓器及第一輸送管之第一噴頭噴出，以位於高處位置用以先擊昏蚊蟲；再由電磁閥與第二儲存槽形成通路並令第二儲存槽內之滅蚊劑經由加壓器及第二輸送管之第二噴頭噴出，以位於低處位置用以噴殺蚊蟲，達到有效消滅蚊蟲之功效。
