The purpose of this study was to examine whether the relationship between smoking cessation motivation and success in smoking cessation had a moderating effect according to the level of use of emotional control strategies (approaching strategy, distractive strategy, support-seeking strategy, and maladaptive strategy) for serious and heavy smokers. By looking at it, it is to provide basic data for an effective smoking cessation program. For this study, from January 2016 to October 2017, 265 people who faithfully answered the questionnaire were selected as the research subjects among 376 people who completed the residential smoking cessation camp program in the local smoking cessation support center located in A city. Statistical analysis was performed by dividing the smoking cessation success group (174 people) and smoking cessation failure group (91 people) according to the results. The result was as follows. First, the variable that showed a significant difference between the successful and unsuccessful smoking cessation group was nicotine dependence. was found to be significantly higher than the level of In addition, 6-month smoking cessation success was found to be significantly related to both smoking-related and psychiatric history. Smoking cessation success was higher if there was a history of smoking and no psychiatric history was found to be successful in quitting smoking. Second, the smoking cessation success rate at 6 months was higher in the older smokers and the higher education group, and this result is consistent with previous studies. Third, smoking cessation motive was not significantly predicted as a predictor variable related to smoking cessation success in the 6-month smoking cessation group among the graduates, so it was not consistent with previous studies that reported that quitting motive was a factor related to smoking cessation success. This does not seem to be discriminated as a predictor of 6-month smoking cessation success because the smoking cessation success group and the non-smoking group of the participants in this study already had a high level of motivation for trying to quit smoking. Fourth, the interaction effect of smoking cessation motive and approaching emotion control strategy was significant on the success of smoking cessation. As the level of access strategy increased (from low level to high level), the effect of smoking cessation motivation on the 6-month smoking cessation probability increased more. On the other hand, the moderating effect of other emotion regulation strategies was insignificant in the relationship between 6-month smoking cessation success and smoking cessation motivation. Based on the results, the implications and limitations of this study were discussed.