The　abundant　plastic　wastes　become　an　imperative　global　issue,　and　how　to　handle　these　organic　wastes　gains　growing　scientific　and　industrial　interest.　Recently,　converting　plastic　wastes　into　hydrogen　fuel　has　been　investigated,　and　the　＂waste-to-value＂　practice　accelerates　the　circular　economy.　To　accelerate　the　development　of　plastic　-to　-hydrogen　conversion,　in　this　review,　recent　advances　in　plastic　-to　-hydrogen　conversion　via　thermochemical,　photocatalytic,　and　electrocatalytic　routes　are　analyzed.　All　of　the　thermo-,　photo-,　and　electrochemical　processes　can　transform　different　plastic　wastes　into　hydrogen,　and　the　hydrogen　production　efficiency　depends　heavily　on　the　selected　techniques,　operating　parameters,　and　applied　catalysts.　The　application　of　rational-designed　catalysts　can　promote　the　selective　production　of　hydrogen　from　plastic　feedstocks.　Further　studies　on　process　optimization,　cost-effective　catalyst　design,　and　mechanism　investigation　are　needed.