可分(fen)為臺式(shi)和立式(shi)（或(huo)(huo)稱落(luo)地式(shi)）兩類(lei)。臺式(shi)飲(yin)水(shui)機(ji)，一般不設(she)消毒柜(ju)或(huo)(huo)儲物柜(ju)，所以(yi)其體(ti)形較(jiao)小， 移動較(jiao)方(fang)便。立式(shi)飲(yin)水(shui)機(ji)上(shang)半部(bu)分(fen)為飲(yin)水(shui)機(ji)，下半部(bu)分(fen)為消毒柜(ju)或(huo)(huo)儲物柜(ju)，可以(yi)消毒茶具或(huo)(huo)儲藏保鮮(xian)食品，個別機(ji)型還設(she)置有小冰柜(ju)，供冷凍飲(yin)料用(yong)。

可分(fen)為溫(wen)(wen)熱(re)型(xing)、冷(leng)熱(re)型(xing)和(he)三(san)溫(wen)(wen)型(xing)三(san)類。溫(wen)(wen)熱(re)型(xing)飲水(shui)(shui)(shui)(shui)(shui)(shui)機設置(zhi)(zhi)有常溫(wen)(wen)／熱(re)水(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)龍頭，分(fen)別(bie)供(gong)應(ying)(ying)常溫(wen)(wen)水(shui)(shui)(shui)(shui)(shui)(shui)／88－96℃熱(re)水(shui)(shui)(shui)(shui)(shui)(shui)；冷(leng)熱(re)型(xing)飲水(shui)(shui)(shui)(shui)(shui)(shui)機又稱冰熱(re)型(xing)飲水(shui)(shui)(shui)(shui)(shui)(shui)機，設置(zhi)(zhi)冷(leng)／熱(re)水(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)龍頭，分(fen)別(bie)供(gong)應(ying)(ying)5~12 ℃冷(leng)水(shui)(shui)(shui)(shui)(shui)(shui)／88~96℃熱(re)水(shui)(shui)(shui)(shui)(shui)(shui)；三(san)溫(wen)(wen)型(xing)飲水(shui)(shui)(shui)(shui)(shui)(shui)機是將上述兩(liang)種機型(xing)的功(gong)能綜合，設置(zhi)(zhi)三(san)個水(shui)(shui)(shui)(shui)(shui)(shui)龍頭，分(fen)別(bie)供(gong)應(ying)(ying)常溫(wen)(wen)水(shui)(shui)(shui)(shui)(shui)(shui)、冷(leng)水(shui)(shui)(shui)(shui)(shui)(shui)和(he)熱(re)水(shui)(shui)(shui)(shui)(shui)(shui)。

可分為電(dian)子制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)型(xing)和壓縮機(ji)(ji)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)型(xing)兩(liang)類，電(dian)子制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)飲水(shui)機(ji)(ji)采(cai)用半導體元件制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)，具有功耗小、運(yun)行噪聲低、無污染、自動(dong)控制(zhi)(zhi)(zhi)和售價低等特點(dian)(dian)，不足之處是制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)速度(du)慢，供應冷(leng)(leng)(leng)(leng)(leng)水(shui)量(liang)(liang)較(jiao)少。壓縮機(ji)(ji)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)飲水(shui)機(ji)(ji)的制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)原理與(yu)冰箱相同(tong)，其制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)容量(liang)(liang)在3L左右，制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)功率在75－110W之間(jian)，具有整機(ji)(ji)可靠性(xing)高、制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)效率高、制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)速度(du)快、冷(leng)(leng)(leng)(leng)(leng)水(shui)供應量(liang)(liang)大等特點(dian)(dian)，其制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)性(xing)能明(ming)顯優(you)于電(dian)子制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)飲水(shui)機(ji)(ji)，但售價較(jiao)貴。

分為使(shi)用瓶裝(zhuang)水(shui)和自(zi)來(lai)水(shui)兩類。瓶裝(zhuang)水(shui)飲(yin)(yin)水(shui)機水(shui)源由供水(shui)中心供應，對水(shui)質(zhi)要(yao)求較高。自(zi)來(lai)水(shui)飲(yin)(yin)水(shui)機除了飲(yin)(yin)水(shui)機功能(neng)外，機內還(huan)設置反滲(shen)透（RO）純水(shui)機或過濾(lv)筒，能(neng)自(zi)動過濾(lv)自(zi)來(lai)水(shui)，其特點(dian)是無(wu)(wu)需更(geng)換瓶、維護費(fei)用低、水(shui)質(zhi)穩定(ding)可靠、無(wu)(wu)菌衛生，不(bu)過，需要(yao)定(ding)期更(geng)換濾(lv)心和濾(lv)膜，費(fei)用不(bu)菲。

可分(fen)為(wei)普通控(kong)(kong)制(zhi)型(xing)、智(zhi)能感應型(xing)和(he)微電(dian)腦(nao)控(kong)(kong)制(zhi)型(xing)三類。普通控(kong)(kong)制(zhi)型(xing)飲水機其加熱和(he)制(zhi)冷均自(zi)(zi)(zi)動恒溫(wen)控(kong)(kong)制(zhi)，是目前(qian)用戶使用最(zui)多(duo)的機型(xing)。智(zhi)能感應型(xing)飲水機利用人(ren)體紅(hong)外(wai)感應，距離一定(ding)范圍內、限定(ding)視角內，人(ren)在時(shi)自(zi)(zi)(zi)動開機，人(ren)離開延(yan)時(shi)數分(fen)鐘后(hou)自(zi)(zi)(zi)動關機，使用安全、節約電(dian)能。微電(dian)腦(nao)單片機控(kong)(kong)制(zhi)，加熱和(he)制(zhi)冷自(zi)(zi)(zi)動控(kong)(kong)溫(wen)，具(ju)有水溫(wen)顯示，溫(wen)度設定(ding)檔位(wei)多(duo)，控(kong)(kong)溫(wen)準確，定(ding)時(shi)切斷(duan)電(dian)源(yuan)，各種操作聲(sheng)光(guang)提示等功能。

抑菌(jun)型飲(yin)水(shui)(shui)(shui)機(ji)特點(dian)除了具有普通飲(yin)水(shui)(shui)(shui)機(ji)的功能外，飲(yin)水(shui)(shui)(shui)機(ji)與水(shui)(shui)(shui)接觸或暴(bao)露在空氣中的塑料(liao)部件，如導水(shui)(shui)(shui)柱、水(shui)(shui)(shui)箱、水(shui)(shui)(shui)龍頭等，硅橡膠連接水(shui)(shui)(shui)管和密封(feng)件均加入“RS抗菌(jun)劑”加工而成，通過緩釋效應能抑制大腸(chang)桿菌(jun)等多(duo)種(zhong)有害細菌(jun)的滋生和繁殖，可長期保持(chi)抗菌(jun)功效。