Objectives : This study sought to identify the Korean medicine treatment satisfaction of 3,000 patients who are 19 or older with experiences of being treated with Korean medicine at Korean medicine clinics or Korean medicine hospitals after experiencing traffic accidents. Methods : Frequency analysis was carried out to identify the effectiveness and satisfaction of Korean medicine services, and independent sample t-test was carried out to compare the satisfaction of users with different characteristics. Lastly, cross analysis(chi-square) was carried out to examine the relation between satisfaction and willingness to recommend. Results : Firstly, 91.3% of the patients were satisfied with the medical services provided at Korean medicine clinics, with the most satisfactory Korean medicine treatments in the order of acupuncture, moxibustion, cupping, Korean physical therapy, herbal acupuncture, Chuna manual therapy, herbal medicine, and others. Secondly, 71.3% of the patients answered that outpatient treatment was appropriate while 65.3% of the patients answered that hospitalized treatment was appropriate regarding duration of treatment at Korean medicine clinics, mostly being satisfied with the treatment duration at Korean medicine clinics and Korean medicine hospitals. Thirdly, in a survey on effectiveness of Korean medicine treatment compared to occidental medicine treatment, 85.9% of the patients answered: "the effectiveness of Korean medicine treatment is higher compared to occidental medicine or similar". Conclusion : From the results of this study, it was identified that satisfaction of Korean medicine treatment is high in motor insurance, and that higher satisfaction led to higher willingness to recommend Korean medicine treatment to others. Based on such results, the expansion of the role of Korean medicine could be understood.