可分(fen)為臺式(shi)(shi)(shi)和立(li)式(shi)(shi)(shi)（或(huo)稱落地式(shi)(shi)(shi)）兩類。臺式(shi)(shi)(shi)飲水(shui)(shui)機(ji)，一(yi)般(ban)不設(she)消毒(du)柜或(huo)儲物柜，所以其(qi)體形(xing)較小(xiao)， 移動(dong)較方便。立(li)式(shi)(shi)(shi)飲水(shui)(shui)機(ji)上半(ban)部(bu)(bu)分(fen)為飲水(shui)(shui)機(ji)，下半(ban)部(bu)(bu)分(fen)為消毒(du)柜或(huo)儲物柜，可以消毒(du)茶具或(huo)儲藏保(bao)鮮食品，個別機(ji)型(xing)還設(she)置有小(xiao)冰柜，供冷(leng)凍飲料(liao)用。

可分(fen)(fen)為(wei)溫(wen)(wen)熱(re)(re)(re)(re)型、冷(leng)熱(re)(re)(re)(re)型和三(san)(san)溫(wen)(wen)型三(san)(san)類。溫(wen)(wen)熱(re)(re)(re)(re)型飲(yin)(yin)水(shui)(shui)(shui)機設(she)置(zhi)有常(chang)(chang)溫(wen)(wen)／熱(re)(re)(re)(re)水(shui)(shui)(shui)水(shui)(shui)(shui)龍頭(tou)，分(fen)(fen)別(bie)供應(ying)常(chang)(chang)溫(wen)(wen)水(shui)(shui)(shui)／88－96℃熱(re)(re)(re)(re)水(shui)(shui)(shui)；冷(leng)熱(re)(re)(re)(re)型飲(yin)(yin)水(shui)(shui)(shui)機又稱冰熱(re)(re)(re)(re)型飲(yin)(yin)水(shui)(shui)(shui)機，設(she)置(zhi)冷(leng)／熱(re)(re)(re)(re)水(shui)(shui)(shui)水(shui)(shui)(shui)龍頭(tou)，分(fen)(fen)別(bie)供應(ying)5~12 ℃冷(leng)水(shui)(shui)(shui)／88~96℃熱(re)(re)(re)(re)水(shui)(shui)(shui)；三(san)(san)溫(wen)(wen)型飲(yin)(yin)水(shui)(shui)(shui)機是(shi)將上述兩種機型的功能綜合，設(she)置(zhi)三(san)(san)個水(shui)(shui)(shui)龍頭(tou)，分(fen)(fen)別(bie)供應(ying)常(chang)(chang)溫(wen)(wen)水(shui)(shui)(shui)、冷(leng)水(shui)(shui)(shui)和熱(re)(re)(re)(re)水(shui)(shui)(shui)。

可分為電(dian)(dian)子(zi)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)型(xing)和壓(ya)縮機(ji)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)型(xing)兩類，電(dian)(dian)子(zi)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)飲水(shui)機(ji)采用半(ban)導(dao)體(ti)元件制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)，具有功耗(hao)小、運(yun)行噪(zao)聲低、無污染、自動(dong)控(kong)制(zhi)(zhi)(zhi)(zhi)和售價(jia)低等特點，不足之處是制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)速(su)度慢，供應冷(leng)(leng)水(shui)量(liang)較(jiao)(jiao)少。壓(ya)縮機(ji)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)飲水(shui)機(ji)的制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)原理與冰箱相同，其制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)容量(liang)在(zai)3L左右(you)，制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)功率在(zai)75－110W之間，具有整機(ji)可靠性(xing)高(gao)、制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)效(xiao)率高(gao)、制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)速(su)度快、冷(leng)(leng)水(shui)供應量(liang)大(da)等特點，其制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)性(xing)能明(ming)顯優于(yu)電(dian)(dian)子(zi)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)飲水(shui)機(ji)，但售價(jia)較(jiao)(jiao)貴(gui)。

分為使(shi)用瓶裝水(shui)和自來水(shui)兩類(lei)。瓶裝水(shui)飲(yin)水(shui)機(ji)水(shui)源(yuan)由供(gong)水(shui)中心供(gong)應(ying)，對水(shui)質要(yao)(yao)求較高(gao)。自來水(shui)飲(yin)水(shui)機(ji)除(chu)了飲(yin)水(shui)機(ji)功能(neng)外，機(ji)內還(huan)設置反滲透（RO）純(chun)水(shui)機(ji)或(huo)過濾(lv)筒，能(neng)自動過濾(lv)自來水(shui)，其特點是(shi)無需(xu)更(geng)換瓶、維護費用低、水(shui)質穩定可靠、無菌(jun)衛生，不過，需(xu)要(yao)(yao)定期更(geng)換濾(lv)心和濾(lv)膜(mo)，費用不菲。

可分為普(pu)通控(kong)(kong)制(zhi)型(xing)(xing)、智(zhi)能(neng)感(gan)應(ying)型(xing)(xing)和微(wei)電(dian)(dian)(dian)(dian)腦控(kong)(kong)制(zhi)型(xing)(xing)三(san)類(lei)。普(pu)通控(kong)(kong)制(zhi)型(xing)(xing)飲水機(ji)其加(jia)熱和制(zhi)冷(leng)均自(zi)動恒溫(wen)控(kong)(kong)制(zhi)，是(shi)目前用(yong)戶使用(yong)最多的機(ji)型(xing)(xing)。智(zhi)能(neng)感(gan)應(ying)型(xing)(xing)飲水機(ji)利用(yong)人(ren)(ren)體(ti)紅外感(gan)應(ying)，距離(li)(li)一定(ding)范圍內(nei)、限(xian)定(ding)視角內(nei)，人(ren)(ren)在時(shi)自(zi)動開機(ji)，人(ren)(ren)離(li)(li)開延(yan)時(shi)數分鐘后自(zi)動關機(ji)，使用(yong)安全、節約電(dian)(dian)(dian)(dian)能(neng)。微(wei)電(dian)(dian)(dian)(dian)腦單片機(ji)控(kong)(kong)制(zhi)，加(jia)熱和制(zhi)冷(leng)自(zi)動控(kong)(kong)溫(wen)，具(ju)有水溫(wen)顯示，溫(wen)度設定(ding)檔位多，控(kong)(kong)溫(wen)準確，定(ding)時(shi)切斷電(dian)(dian)(dian)(dian)源，各種操作聲光提示等功能(neng)。

抑菌(jun)(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)功能外，飲(yin)水(shui)(shui)機(ji)與水(shui)(shui)接觸或(huo)暴露在空氣中的(de)塑(su)料部(bu)件，如導水(shui)(shui)柱(zhu)、水(shui)(shui)箱(xiang)、水(shui)(shui)龍(long)頭等(deng)，硅橡膠連接水(shui)(shui)管和(he)密封件均加入“RS抗菌(jun)(jun)劑”加工而(er)成，通過緩釋效應能抑制大腸桿菌(jun)(jun)等(deng)多種有害(hai)細(xi)菌(jun)(jun)的(de)滋生(sheng)和(he)繁(fan)殖，可長期保持抗菌(jun)(jun)功效。