可分(fen)為臺式(shi)和(he)立(li)式(shi)（或(huo)(huo)稱落地(di)式(shi)）兩類(lei)。臺式(shi)飲水機，一般不(bu)設消(xiao)毒柜(ju)(ju)或(huo)(huo)儲物柜(ju)(ju)，所以其體形較小， 移動較方便。立(li)式(shi)飲水機上半部分(fen)為飲水機，下半部分(fen)為消(xiao)毒柜(ju)(ju)或(huo)(huo)儲物柜(ju)(ju)，可以消(xiao)毒茶具或(huo)(huo)儲藏(zang)保鮮食(shi)品，個別(bie)機型還(huan)設置(zhi)有小冰柜(ju)(ju)，供冷凍(dong)飲料用。

可(ke)分為溫(wen)(wen)熱型、冷(leng)熱型和三溫(wen)(wen)型三類。溫(wen)(wen)熱型飲(yin)(yin)(yin)水(shui)(shui)(shui)(shui)(shui)機(ji)設(she)置(zhi)有常溫(wen)(wen)／熱水(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)龍頭，分別(bie)供(gong)應(ying)常溫(wen)(wen)水(shui)(shui)(shui)(shui)(shui)／88－96℃熱水(shui)(shui)(shui)(shui)(shui)；冷(leng)熱型飲(yin)(yin)(yin)水(shui)(shui)(shui)(shui)(shui)機(ji)又稱冰(bing)熱型飲(yin)(yin)(yin)水(shui)(shui)(shui)(shui)(shui)機(ji)，設(she)置(zhi)冷(leng)／熱水(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)龍頭，分別(bie)供(gong)應(ying)5~12 ℃冷(leng)水(shui)(shui)(shui)(shui)(shui)／88~96℃熱水(shui)(shui)(shui)(shui)(shui)；三溫(wen)(wen)型飲(yin)(yin)(yin)水(shui)(shui)(shui)(shui)(shui)機(ji)是將上述(shu)兩種機(ji)型的功(gong)能綜合，設(she)置(zhi)三個水(shui)(shui)(shui)(shui)(shui)龍頭，分別(bie)供(gong)應(ying)常溫(wen)(wen)水(shui)(shui)(shui)(shui)(shui)、冷(leng)水(shui)(shui)(shui)(shui)(shui)和熱水(shui)(shui)(shui)(shui)(shui)。

可分為電(dian)子(zi)制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)型(xing)和壓(ya)縮機(ji)(ji)制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)型(xing)兩類，電(dian)子(zi)制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)飲(yin)水機(ji)(ji)采用半導體(ti)元件制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)，具有功耗小、運(yun)行噪聲低、無污染、自動控制(zhi)和售價(jia)低等(deng)特點，不(bu)足之(zhi)(zhi)處是制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)速度(du)慢，供應(ying)冷(leng)(leng)(leng)(leng)(leng)(leng)水量較少。壓(ya)縮機(ji)(ji)制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)飲(yin)水機(ji)(ji)的制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)原理與冰箱相同，其制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)容量在(zai)3L左(zuo)右，制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)功率(lv)在(zai)75－110W之(zhi)(zhi)間，具有整機(ji)(ji)可靠性(xing)高(gao)(gao)、制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)效率(lv)高(gao)(gao)、制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)速度(du)快(kuai)、冷(leng)(leng)(leng)(leng)(leng)(leng)水供應(ying)量大(da)等(deng)特點，其制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)性(xing)能明顯(xian)優(you)于電(dian)子(zi)制(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)飲(yin)水機(ji)(ji)，但售價(jia)較貴。

分為使用瓶(ping)(ping)裝水(shui)(shui)和自來(lai)水(shui)(shui)兩類(lei)。瓶(ping)(ping)裝水(shui)(shui)飲(yin)水(shui)(shui)機水(shui)(shui)源由供(gong)(gong)水(shui)(shui)中心供(gong)(gong)應，對水(shui)(shui)質要(yao)求較高。自來(lai)水(shui)(shui)飲(yin)水(shui)(shui)機除了(le)飲(yin)水(shui)(shui)機功能外，機內(nei)還(huan)設置反滲透(tou)（RO）純水(shui)(shui)機或過(guo)濾筒(tong)，能自動過(guo)濾自來(lai)水(shui)(shui)，其特點是無需更換(huan)瓶(ping)(ping)、維護(hu)費(fei)用低、水(shui)(shui)質穩定(ding)可靠、無菌(jun)衛生(sheng)，不(bu)過(guo)，需要(yao)定(ding)期更換(huan)濾心和濾膜(mo)，費(fei)用不(bu)菲。

可分(fen)為普通控(kong)(kong)(kong)制(zhi)型、智能(neng)感(gan)應(ying)型和微電(dian)腦控(kong)(kong)(kong)制(zhi)型三類。普通控(kong)(kong)(kong)制(zhi)型飲水機其加熱(re)和制(zhi)冷(leng)(leng)均自動(dong)(dong)恒溫(wen)(wen)(wen)控(kong)(kong)(kong)制(zhi)，是(shi)目前(qian)用(yong)戶使(shi)用(yong)最多(duo)的機型。智能(neng)感(gan)應(ying)型飲水機利用(yong)人(ren)體紅外(wai)感(gan)應(ying)，距(ju)離一(yi)定范圍內、限定視(shi)角(jiao)內，人(ren)在(zai)時(shi)自動(dong)(dong)開機，人(ren)離開延(yan)時(shi)數分(fen)鐘后自動(dong)(dong)關機，使(shi)用(yong)安全、節約電(dian)能(neng)。微電(dian)腦單片(pian)機控(kong)(kong)(kong)制(zhi)，加熱(re)和制(zhi)冷(leng)(leng)自動(dong)(dong)控(kong)(kong)(kong)溫(wen)(wen)(wen)，具有水溫(wen)(wen)(wen)顯示，溫(wen)(wen)(wen)度設定檔位多(duo)，控(kong)(kong)(kong)溫(wen)(wen)(wen)準確，定時(shi)切(qie)斷(duan)電(dian)源，各種(zhong)操(cao)作聲光提示等(deng)功能(neng)。

抑(yi)菌型飲水(shui)機(ji)特點除了具有(you)普通飲水(shui)機(ji)的功(gong)(gong)能外(wai)，飲水(shui)機(ji)與水(shui)接觸或暴(bao)露在空氣中的塑料部件(jian)，如導水(shui)柱、水(shui)箱(xiang)、水(shui)龍頭(tou)等，硅橡(xiang)膠連接水(shui)管和密(mi)封件(jian)均(jun)加(jia)入“RS抗菌劑”加(jia)工而(er)成(cheng)，通過緩釋效(xiao)應能抑(yi)制大(da)腸桿菌等多種有(you)害細(xi)菌的滋生和繁殖，可長期保持抗菌功(gong)(gong)效(xiao)。