Zaponke za spenjanje oblačil so občutljiv kronološki pokazatelj in kažipot kulturnih stikov, zato jim je v arheoloških študijah namenjena posebna pozornost. Predmet te razprave so kačaste fibule z območja današnje Slovenije, njihova tipokronološka razčlenitev in razširjenost. Predlagana je klasifikacija v sedem osnovnih tipov z nadaljnjo delitvijo na več različic, poleg tega so predstavljeni tudi unikatni primerki. Kačaste fibule so vodilna vrsta zaponk v 6. st. pr. n. št., idejne pobude zanje je moč iskati na Apeninskem polotoku. Preoblikovali so jih v lokalnih delavnicah, pripadale pa so tako ženskim kot moškim opravam.Fibulae are chronologically sensitive items, and also good indicators of cross-cultural contacts. For this reason, particular attention was and is being paid to them in archaeological studies. This article is also dedicated to them, more precisely to the serpentine fibulae from Slovenia, their typo-chronological framework and distribution. A classification is proposed into seven basic types with further subdivision into variants; and unique examples are also presented. Serpentine fibulae represent the leading form of brooches for fastening clothes worn by both men and women in the sixth century BC. Although their basic form was conceived in the Apennine Peninsula, they quickly spread to neighbouring regions and were further developed by local workshops