A portable vacuum oral cleaner includes a main body and a clean head. The main body includes a control circuit board, a vacuum pump and a battery installed therein. The battery is used to provide power to the pump. The control circuit board is used to control an operation of the vacuum pump. A connection end of the main body is equipped with a filter. An end of clean head is detachably connected with the connection end of the main body, and an opposite end of the clean head has a soft vacuum head, and the clean head has a chamber inside. When the clean head is connected with the connection end of the main body, a vacuum channel is formed between the soft vacuum head and the pump.一種可攜式負壓口腔清潔裝置包含一本體部以及一清潔頭。本體部具有一控制電路板、一負壓泵以及一電池位於其內。電池用以供給負壓泵所需的用電。控制電路板用以控制負壓泵的運作。本體部的連接端上具有一過濾棉。清潔頭的一端部可拆卸地連接於本體部的連接端,清潔頭的另一端部具有一軟性吸頭,且清潔頭內具有一集水腔。當清潔頭連接於本體部的連接端時,從軟性吸頭到負壓泵之間形成一負壓通道。100‧‧‧口腔清潔裝置102‧‧‧清潔頭104‧‧‧本體部106‧‧‧殼體106a‧‧‧連接端106b‧‧‧定位槽106c‧‧‧密封圈108‧‧‧電池110‧‧‧負壓泵112‧‧‧控制電路板114‧‧‧按鈕116‧‧‧軟性連接管118‧‧‧集水腔120a‧‧‧端部120b‧‧‧凸勾122‧‧‧定位肋124‧‧‧軟性吸頭126‧‧‧過濾棉128‧‧‧端部130‧‧‧三通管132‧‧‧負壓感測器
