A kind of books bactericidal device, to carry out degerming to books. Books bactericidal device includes a cabinet, a bracket, a fan, a germicidal light source and a fragrant generator. Cabinet has the internal chamber being made of top surface, bottom surface and side wall. Between side wall position what top surface and bottom surface, and bottom surface has an air inlet, and top surface has a gas outlet. Bracket is used to support books, so that books found what internal chamber, and allows the cover of books with back cover in separated position. Fan is arranged at what adjacent floor, enters internal chamber via the air inlet of bottom surface to provide an air-flow, and leave internal chamber by the gas outlet of top surface. Germicidal light source is arranged in what cabinet, to irradiate books. In fragrant generator setting what cabinet and position what air-flow can and place, spread an aromatic substance in what internal chamber via playing stream and drive.一種圖書除菌裝置，用以對書本進行除菌。圖書除菌裝置包括一箱體、一支架、一風扇、一殺菌光源以及一芳香產生器。箱體具有由頂面、底面及側壁所構成的內部腔室。側壁位於頂面及底面之間，且底面具有一進氣口，頂面具有一出氣口。支架用來支撐書本，使得書本立於內部腔室，並且讓書本的封面跟封底呈分開狀態。風扇設置於鄰近底面處，用以提供一氣流經由底面的進氣口進入內部腔室，並且由頂面的出氣口離開內部腔室。殺菌光源設置於箱體內，用以照射書本。芳香產生器設置於箱體內並且位於氣流可及之處，用以經由起流帶動使一芳香物質散佈於內部腔室中。
