A kind of water steaming formula sterilization and disinsection device, including ontology, water absorption layer, exothermic mixture, fungicide and insecticide. Ontology includes shell, inner casing, bottom cover and opens up gas vent. Shell encloses the first room of structure connection what gas vent. Inner casing sets the first room of what and encloses the second room of the opening at the top of structure connection what inner casing. Bottom cover sets what shell. Water absorption layer sets what bottom cover. Exothermic mixture and insecticide set up the first, second room of what separately. Fungicide includes precursor solution and activator. Precursor solution penetrates water absorption layer into the first room at leisure, and reacts with exothermic mixture and activator and generate heat and bactericidal vapour, and heat heats insecticide and generates desinsection steam. Thereby, this creation energy sterilization and disinsection, and extend the reaction time of predecessor and activator, improve the concentration of bactericidal vapour.一種水蒸式殺菌殺蟲裝置，包括本體、吸水層、發熱劑、殺菌劑及殺蟲劑。本體包括外殼、內殼、底蓋且開設排氣孔。外殼圍構連通於排氣孔的第一容室。內殼設於第一容室且圍構連通於內殼頂部的開口的第二容室。底蓋設於外殼。吸水層設於底蓋。發熱劑和殺蟲劑分設於第一、第二容室。殺菌劑包含前驅物溶液和活化劑。前驅物溶液慢慢地滲透過吸水層進入第一容室，並與發熱劑和活化劑反應產生熱量及殺菌蒸氣，熱量對殺蟲劑加熱產生殺蟲蒸氣。藉此，本創作能殺菌殺蟲，且延長前驅物和活化劑的反應時間，提高殺菌蒸氣的濃度。
