可(ke)分為臺(tai)式(shi)(shi)和立(li)式(shi)(shi)（或(huo)(huo)(huo)稱落地(di)式(shi)(shi)）兩類。臺(tai)式(shi)(shi)飲水機(ji)(ji)，一(yi)般不設消毒(du)柜或(huo)(huo)(huo)儲(chu)物(wu)柜，所以其(qi)體形較小(xiao)， 移動較方便。立(li)式(shi)(shi)飲水機(ji)(ji)上半部分為飲水機(ji)(ji)，下(xia)半部分為消毒(du)柜或(huo)(huo)(huo)儲(chu)物(wu)柜，可(ke)以消毒(du)茶具(ju)或(huo)(huo)(huo)儲(chu)藏(zang)保鮮(xian)食品(pin)，個別機(ji)(ji)型還(huan)設置有(you)小(xiao)冰柜，供(gong)冷凍飲料用。

可分為(wei)溫(wen)熱(re)型(xing)、冷熱(re)型(xing)和(he)三(san)溫(wen)型(xing)三(san)類。溫(wen)熱(re)型(xing)飲(yin)水(shui)(shui)(shui)機設置有常溫(wen)／熱(re)水(shui)(shui)(shui)水(shui)(shui)(shui)龍(long)頭，分別(bie)供應(ying)(ying)常溫(wen)水(shui)(shui)(shui)／88－96℃熱(re)水(shui)(shui)(shui)；冷熱(re)型(xing)飲(yin)水(shui)(shui)(shui)機又稱冰熱(re)型(xing)飲(yin)水(shui)(shui)(shui)機，設置冷／熱(re)水(shui)(shui)(shui)水(shui)(shui)(shui)龍(long)頭，分別(bie)供應(ying)(ying)5~12 ℃冷水(shui)(shui)(shui)／88~96℃熱(re)水(shui)(shui)(shui)；三(san)溫(wen)型(xing)飲(yin)水(shui)(shui)(shui)機是將上述(shu)兩(liang)種機型(xing)的功能綜合，設置三(san)個(ge)水(shui)(shui)(shui)龍(long)頭，分別(bie)供應(ying)(ying)常溫(wen)水(shui)(shui)(shui)、冷水(shui)(shui)(shui)和(he)熱(re)水(shui)(shui)(shui)。

可分(fen)為電子(zi)(zi)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)型和壓(ya)縮(suo)機(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)型兩(liang)類，電子(zi)(zi)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)飲水機(ji)采用(yong)半導體元件制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)，具有(you)功(gong)耗小、運行噪聲低(di)、無污染、自動控制(zhi)(zhi)(zhi)(zhi)(zhi)和售(shou)價(jia)低(di)等特點(dian)，不足之(zhi)處是(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)速(su)(su)度(du)慢，供應(ying)冷(leng)(leng)(leng)水量較(jiao)少。壓(ya)縮(suo)機(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)飲水機(ji)的(de)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)原理與冰箱相同(tong)，其制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)容量在(zai)3L左(zuo)右(you)，制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)功(gong)率在(zai)75－110W之(zhi)間(jian)，具有(you)整機(ji)可靠(kao)性高(gao)、制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)效率高(gao)、制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)速(su)(su)度(du)快(kuai)、冷(leng)(leng)(leng)水供應(ying)量大(da)等特點(dian)，其制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)性能明(ming)顯優(you)于電子(zi)(zi)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)飲水機(ji)，但售(shou)價(jia)較(jiao)貴(gui)。

分為使用瓶裝水(shui)(shui)和(he)自來水(shui)(shui)兩類(lei)。瓶裝水(shui)(shui)飲水(shui)(shui)機(ji)水(shui)(shui)源由供水(shui)(shui)中心供應，對水(shui)(shui)質要求較高。自來水(shui)(shui)飲水(shui)(shui)機(ji)除了飲水(shui)(shui)機(ji)功能(neng)外，機(ji)內(nei)還設置反滲透（RO）純水(shui)(shui)機(ji)或過濾筒，能(neng)自動過濾自來水(shui)(shui)，其(qi)特點是無需(xu)更換(huan)瓶、維護費(fei)用低、水(shui)(shui)質穩定可靠、無菌(jun)衛生，不(bu)過，需(xu)要定期更換(huan)濾心和(he)濾膜，費(fei)用不(bu)菲(fei)。

可分(fen)為普通控(kong)(kong)制(zhi)(zhi)(zhi)型(xing)(xing)(xing)、智(zhi)能感(gan)(gan)應型(xing)(xing)(xing)和微電腦(nao)(nao)控(kong)(kong)制(zhi)(zhi)(zhi)型(xing)(xing)(xing)三(san)類。普通控(kong)(kong)制(zhi)(zhi)(zhi)型(xing)(xing)(xing)飲(yin)水機(ji)(ji)其加(jia)熱和制(zhi)(zhi)(zhi)冷均(jun)自動恒溫(wen)(wen)控(kong)(kong)制(zhi)(zhi)(zhi)，是目前用(yong)戶(hu)使用(yong)最多(duo)的機(ji)(ji)型(xing)(xing)(xing)。智(zhi)能感(gan)(gan)應型(xing)(xing)(xing)飲(yin)水機(ji)(ji)利用(yong)人(ren)體紅外(wai)感(gan)(gan)應，距離(li)一定范圍內、限定視(shi)角內，人(ren)在時自動開機(ji)(ji)，人(ren)離(li)開延時數分(fen)鐘后自動關機(ji)(ji)，使用(yong)安全(quan)、節約電能。微電腦(nao)(nao)單片(pian)機(ji)(ji)控(kong)(kong)制(zhi)(zhi)(zhi)，加(jia)熱和制(zhi)(zhi)(zhi)冷自動控(kong)(kong)溫(wen)(wen)，具有水溫(wen)(wen)顯示(shi)，溫(wen)(wen)度設定檔(dang)位(wei)多(duo)，控(kong)(kong)溫(wen)(wen)準確(que)，定時切斷電源，各種操作(zuo)聲光提示(shi)等功能。

抑(yi)菌(jun)(jun)(jun)型(xing)飲(yin)水(shui)(shui)機特點除了具有普(pu)通飲(yin)水(shui)(shui)機的功能外，飲(yin)水(shui)(shui)機與水(shui)(shui)接(jie)觸或暴露在空氣中的塑料(liao)部(bu)件(jian)，如導水(shui)(shui)柱(zhu)、水(shui)(shui)箱、水(shui)(shui)龍頭(tou)等，硅橡膠(jiao)連接(jie)水(shui)(shui)管和密封件(jian)均加入“RS抗菌(jun)(jun)(jun)劑”加工而(er)成，通過(guo)緩釋(shi)效應能抑(yi)制大(da)腸桿菌(jun)(jun)(jun)等多種(zhong)有害細(xi)菌(jun)(jun)(jun)的滋生和繁殖，可長(chang)期保持抗菌(jun)(jun)(jun)功效。