This study was conducted to investigate smoking characteristics and oral health status of the college students in practice for oral hygiene. The sample consisted of 298 at the scaling practice room of dental hygiene department in D College from April to November 2016. The data was analyzed with χ2-test and t-test using SPSS 18.0 program. Of 298, 40.9% was smoker. Of these, 51.7% smoked less than a pack a day. Smoker showed cold teeth and mouth dryness symptoms. It was high percentage of toothbrushing time of smoker is "2minutes" and non-smoker "3minutes". Also gingival bleeding on toothbrushing and halitosis were higher of smokers(p<0.05). O'learly index was the higest of smokers(p<0.05). I suggest with the result of the study that there needs a valid non-smoking treatment guidelines and oral health management for college students. Also These are required policy support for the continued active participation and