可(ke)分為臺式和立式（或稱落地式）兩類。臺式飲(yin)水機(ji)，一般不設(she)消毒柜(ju)(ju)或儲(chu)物柜(ju)(ju)，所以(yi)其體形較小， 移動較方便。立式飲(yin)水機(ji)上半部分為飲(yin)水機(ji)，下半部分為消毒柜(ju)(ju)或儲(chu)物柜(ju)(ju)，可(ke)以(yi)消毒茶具或儲(chu)藏保鮮食(shi)品(pin)，個別機(ji)型還設(she)置有小冰柜(ju)(ju)，供冷凍飲(yin)料(liao)用(yong)。

可分為溫(wen)(wen)熱(re)型(xing)(xing)、冷(leng)熱(re)型(xing)(xing)和三(san)溫(wen)(wen)型(xing)(xing)三(san)類。溫(wen)(wen)熱(re)型(xing)(xing)飲(yin)(yin)(yin)水(shui)(shui)(shui)機設置(zhi)有常(chang)溫(wen)(wen)／熱(re)水(shui)(shui)(shui)水(shui)(shui)(shui)龍(long)頭(tou)(tou)，分別(bie)供應(ying)常(chang)溫(wen)(wen)水(shui)(shui)(shui)／88－96℃熱(re)水(shui)(shui)(shui)；冷(leng)熱(re)型(xing)(xing)飲(yin)(yin)(yin)水(shui)(shui)(shui)機又(you)稱冰熱(re)型(xing)(xing)飲(yin)(yin)(yin)水(shui)(shui)(shui)機，設置(zhi)冷(leng)／熱(re)水(shui)(shui)(shui)水(shui)(shui)(shui)龍(long)頭(tou)(tou)，分別(bie)供應(ying)5~12 ℃冷(leng)水(shui)(shui)(shui)／88~96℃熱(re)水(shui)(shui)(shui)；三(san)溫(wen)(wen)型(xing)(xing)飲(yin)(yin)(yin)水(shui)(shui)(shui)機是將上述兩種(zhong)機型(xing)(xing)的功(gong)能綜(zong)合，設置(zhi)三(san)個水(shui)(shui)(shui)龍(long)頭(tou)(tou)，分別(bie)供應(ying)常(chang)溫(wen)(wen)水(shui)(shui)(shui)、冷(leng)水(shui)(shui)(shui)和熱(re)水(shui)(shui)(shui)。

可(ke)(ke)分為電子(zi)(zi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)型(xing)和壓(ya)(ya)縮機(ji)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)型(xing)兩(liang)類，電子(zi)(zi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)飲(yin)水(shui)(shui)機(ji)采用半(ban)導體元件制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)，具(ju)有(you)功耗小、運(yun)行噪聲(sheng)低(di)、無污染、自動(dong)控制(zhi)(zhi)和售(shou)價低(di)等特(te)點(dian)，不(bu)足(zu)之處是制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)速(su)度(du)慢(man)，供應(ying)冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)量(liang)較少。壓(ya)(ya)縮機(ji)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)飲(yin)水(shui)(shui)機(ji)的制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)原理與冰箱相(xiang)同，其(qi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)容量(liang)在3L左(zuo)右，制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)功率在75－110W之間，具(ju)有(you)整機(ji)可(ke)(ke)靠性高、制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)效率高、制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)速(su)度(du)快、冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)供應(ying)量(liang)大等特(te)點(dian)，其(qi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)性能明顯(xian)優于電子(zi)(zi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)飲(yin)水(shui)(shui)機(ji)，但售(shou)價較貴。

分為使用瓶裝水(shui)(shui)(shui)和自來水(shui)(shui)(shui)兩類(lei)。瓶裝水(shui)(shui)(shui)飲(yin)(yin)水(shui)(shui)(shui)機(ji)(ji)水(shui)(shui)(shui)源由供水(shui)(shui)(shui)中心供應，對水(shui)(shui)(shui)質(zhi)要求較高。自來水(shui)(shui)(shui)飲(yin)(yin)水(shui)(shui)(shui)機(ji)(ji)除了(le)飲(yin)(yin)水(shui)(shui)(shui)機(ji)(ji)功能(neng)外，機(ji)(ji)內(nei)還設置反滲(shen)透（RO）純水(shui)(shui)(shui)機(ji)(ji)或過濾(lv)筒，能(neng)自動過濾(lv)自來水(shui)(shui)(shui)，其(qi)特點是無需更換瓶、維(wei)護(hu)費用低(di)、水(shui)(shui)(shui)質(zhi)穩(wen)定(ding)可靠、無菌(jun)衛(wei)生，不過，需要定(ding)期(qi)更換濾(lv)心和濾(lv)膜，費用不菲。

可分(fen)為普通(tong)控(kong)制(zhi)(zhi)(zhi)(zhi)型(xing)、智(zhi)能感(gan)應(ying)型(xing)和(he)微電腦(nao)控(kong)制(zhi)(zhi)(zhi)(zhi)型(xing)三(san)類。普通(tong)控(kong)制(zhi)(zhi)(zhi)(zhi)型(xing)飲水(shui)機其加熱和(he)制(zhi)(zhi)(zhi)(zhi)冷均自(zi)動(dong)恒溫(wen)(wen)控(kong)制(zhi)(zhi)(zhi)(zhi)，是目前(qian)用(yong)戶使用(yong)最(zui)多的機型(xing)。智(zhi)能感(gan)應(ying)型(xing)飲水(shui)機利用(yong)人體紅外(wai)感(gan)應(ying)，距離一定(ding)范圍內(nei)、限定(ding)視角(jiao)內(nei)，人在時自(zi)動(dong)開機，人離開延時數分(fen)鐘后自(zi)動(dong)關機，使用(yong)安全、節約電能。微電腦(nao)單片機控(kong)制(zhi)(zhi)(zhi)(zhi)，加熱和(he)制(zhi)(zhi)(zhi)(zhi)冷自(zi)動(dong)控(kong)溫(wen)(wen)，具(ju)有水(shui)溫(wen)(wen)顯示(shi)，溫(wen)(wen)度設定(ding)檔位多，控(kong)溫(wen)(wen)準確，定(ding)時切斷(duan)電源，各種操作聲光提示(shi)等功能。

抑菌型飲(yin)水機(ji)特(te)點除了具(ju)有(you)普通飲(yin)水機(ji)的(de)功能(neng)外，飲(yin)水機(ji)與水接觸或暴露在空氣(qi)中的(de)塑料(liao)部(bu)件，如(ru)導水柱、水箱、水龍頭(tou)等，硅橡膠連接水管和密封件均加入(ru)“RS抗(kang)菌劑”加工而成，通過緩(huan)釋效應(ying)能(neng)抑制(zhi)大腸桿菌等多(duo)種有(you)害細(xi)菌的(de)滋生和繁殖，可長期保持抗(kang)菌功效。