可分為臺(tai)式(shi)(shi)(shi)和立式(shi)(shi)(shi)（或稱落地式(shi)(shi)(shi)）兩類。臺(tai)式(shi)(shi)(shi)飲(yin)水(shui)機(ji)，一般不設消毒柜(ju)或儲(chu)物柜(ju)，所(suo)以其(qi)體形較(jiao)小(xiao)， 移動較(jiao)方便。立式(shi)(shi)(shi)飲(yin)水(shui)機(ji)上半部分為飲(yin)水(shui)機(ji)，下半部分為消毒柜(ju)或儲(chu)物柜(ju)，可以消毒茶具(ju)或儲(chu)藏保(bao)鮮食品，個別機(ji)型還(huan)設置(zhi)有小(xiao)冰柜(ju)，供冷凍(dong)飲(yin)料用。

可分(fen)(fen)(fen)為溫(wen)(wen)(wen)熱(re)(re)(re)(re)型(xing)(xing)(xing)、冷(leng)熱(re)(re)(re)(re)型(xing)(xing)(xing)和(he)(he)三溫(wen)(wen)(wen)型(xing)(xing)(xing)三類。溫(wen)(wen)(wen)熱(re)(re)(re)(re)型(xing)(xing)(xing)飲水(shui)(shui)機設(she)(she)置(zhi)有常溫(wen)(wen)(wen)／熱(re)(re)(re)(re)水(shui)(shui)水(shui)(shui)龍(long)頭(tou)(tou)，分(fen)(fen)(fen)別(bie)供(gong)應常溫(wen)(wen)(wen)水(shui)(shui)／88－96℃熱(re)(re)(re)(re)水(shui)(shui)；冷(leng)熱(re)(re)(re)(re)型(xing)(xing)(xing)飲水(shui)(shui)機又稱冰熱(re)(re)(re)(re)型(xing)(xing)(xing)飲水(shui)(shui)機，設(she)(she)置(zhi)冷(leng)／熱(re)(re)(re)(re)水(shui)(shui)水(shui)(shui)龍(long)頭(tou)(tou)，分(fen)(fen)(fen)別(bie)供(gong)應5~12 ℃冷(leng)水(shui)(shui)／88~96℃熱(re)(re)(re)(re)水(shui)(shui)；三溫(wen)(wen)(wen)型(xing)(xing)(xing)飲水(shui)(shui)機是將上述兩(liang)種(zhong)機型(xing)(xing)(xing)的功能綜合，設(she)(she)置(zhi)三個水(shui)(shui)龍(long)頭(tou)(tou)，分(fen)(fen)(fen)別(bie)供(gong)應常溫(wen)(wen)(wen)水(shui)(shui)、冷(leng)水(shui)(shui)和(he)(he)熱(re)(re)(re)(re)水(shui)(shui)。

可分(fen)為電子(zi)制(zhi)冷(leng)型(xing)和壓縮(suo)機(ji)(ji)(ji)制(zhi)冷(leng)型(xing)兩(liang)類，電子(zi)制(zhi)冷(leng)飲水(shui)(shui)機(ji)(ji)(ji)采用半(ban)導體元件制(zhi)冷(leng)，具有功耗小、運行噪聲低、無污染、自動控(kong)制(zhi)和售價(jia)低等(deng)(deng)特(te)點，不足之處是制(zhi)冷(leng)速度慢，供(gong)應冷(leng)水(shui)(shui)量較(jiao)少。壓縮(suo)機(ji)(ji)(ji)制(zhi)冷(leng)飲水(shui)(shui)機(ji)(ji)(ji)的制(zhi)冷(leng)原理與冰箱相(xiang)同，其制(zhi)冷(leng)容量在(zai)3L左右(you)，制(zhi)冷(leng)功率在(zai)75－110W之間(jian)，具有整(zheng)機(ji)(ji)(ji)可靠性高(gao)、制(zhi)冷(leng)效率高(gao)、制(zhi)冷(leng)速度快、冷(leng)水(shui)(shui)供(gong)應量大等(deng)(deng)特(te)點，其制(zhi)冷(leng)性能明顯優(you)于(yu)電子(zi)制(zhi)冷(leng)飲水(shui)(shui)機(ji)(ji)(ji)，但售價(jia)較(jiao)貴。

分為(wei)使用(yong)瓶(ping)裝水(shui)(shui)(shui)(shui)和(he)自來水(shui)(shui)(shui)(shui)兩類。瓶(ping)裝水(shui)(shui)(shui)(shui)飲水(shui)(shui)(shui)(shui)機水(shui)(shui)(shui)(shui)源由供(gong)水(shui)(shui)(shui)(shui)中心供(gong)應，對(dui)水(shui)(shui)(shui)(shui)質要(yao)求較高(gao)。自來水(shui)(shui)(shui)(shui)飲水(shui)(shui)(shui)(shui)機除(chu)了飲水(shui)(shui)(shui)(shui)機功能外，機內還設(she)置反滲透（RO）純水(shui)(shui)(shui)(shui)機或(huo)過(guo)濾筒，能自動過(guo)濾自來水(shui)(shui)(shui)(shui)，其特點(dian)是(shi)無需更(geng)換(huan)瓶(ping)、維護(hu)費用(yong)低、水(shui)(shui)(shui)(shui)質穩(wen)定可靠(kao)、無菌衛生，不過(guo)，需要(yao)定期更(geng)換(huan)濾心和(he)濾膜(mo)，費用(yong)不菲。

可分為普通(tong)控(kong)制(zhi)(zhi)型(xing)、智能(neng)感(gan)應(ying)(ying)型(xing)和微電(dian)腦控(kong)制(zhi)(zhi)型(xing)三類。普通(tong)控(kong)制(zhi)(zhi)型(xing)飲(yin)水機(ji)其加熱(re)和制(zhi)(zhi)冷(leng)均自(zi)動恒(heng)溫控(kong)制(zhi)(zhi)，是目前用戶使用最多(duo)的機(ji)型(xing)。智能(neng)感(gan)應(ying)(ying)型(xing)飲(yin)水機(ji)利用人體紅(hong)外感(gan)應(ying)(ying)，距離一定范(fan)圍(wei)內、限定視角(jiao)內，人在時(shi)自(zi)動開機(ji)，人離開延(yan)時(shi)數分鐘后(hou)自(zi)動關機(ji)，使用安全、節約電(dian)能(neng)。微電(dian)腦單片機(ji)控(kong)制(zhi)(zhi)，加熱(re)和制(zhi)(zhi)冷(leng)自(zi)動控(kong)溫，具有水溫顯示(shi)，溫度設定檔(dang)位多(duo)，控(kong)溫準確(que)，定時(shi)切斷電(dian)源(yuan)，各種操作(zuo)聲光提示(shi)等功能(neng)。

抑菌(jun)型飲(yin)水(shui)(shui)機(ji)特點除了具有普通飲(yin)水(shui)(shui)機(ji)的(de)功(gong)能外，飲(yin)水(shui)(shui)機(ji)與水(shui)(shui)接觸(chu)或暴露(lu)在空(kong)氣中的(de)塑料部件，如導水(shui)(shui)柱、水(shui)(shui)箱、水(shui)(shui)龍頭等(deng)(deng)，硅(gui)橡膠連接水(shui)(shui)管和(he)密封件均加(jia)入“RS抗菌(jun)劑”加(jia)工而成，通過緩釋效應(ying)能抑制大腸桿菌(jun)等(deng)(deng)多種有害細菌(jun)的(de)滋(zi)生和(he)繁殖(zhi)，可長期保持抗菌(jun)功(gong)效。