Objectives: This study was performed to examine the utilization rates of preventive health services including flu vaccination, general health and cancer screenings among Korean women aged 40-64, and to identify disparities in these services utilization according to socioeconomic factors. Methods: This study used the data from 2014 Community Health Survey, and study subjects were 57,522 women aged 40-64. The selected socioeconomic factors in this study were age, educational attainment, job, monthly income, marital status and residential area, and preventive health services were defined the utilizations of flu vaccination in the past year, and general health and cancer screenings in last 2 years. To examine the social disparities in utilization of preventive health services, chi-square test and multiple logistic regression analysis were used. Results: The service utilization rates of flu vaccination, general health and cancer screenings were 34.3%, 77.8%, and 73.6%, respectively. Increasing age, lower educational attainment, being unemployed and living in rural area had higher odds ratios for flu vaccination. Increasing age, lower educational attainment, being employed, increasing monthly income, living with partner and living in urban area were statistically significant associated with receiving general health screening. The associated factors with cancer screening were increasing age, lower educational attainment, being employed with non-physical job, increasing monthly income, living with partner and living with urban area. Conclusions: This study was showed that socioeconomic disparities in utilization of preventive health services were found in Korean women aged 40-64. Efforts to improve social disparities in preventive health service utilization among Korean women need an important public health focus.