Tailor is a risky job that impact to low back pain. Low back pain (LBP) can cause a tailor to experience a decrease in the ability to perform daily activities and occupational health problems. One of the low back pain risk factors is individual factors include body mass index (BMI), exercise habits, and working period. This research was observational analytical research with a cross-sectional design conducted at Informal Sector tailor in Solor, Kupang City by filling questioner, body mass index measurement, and direct interview. The sampling technique used was total sampling with 48 samples that fulfilled inclusion and exclusion criteria. The data were analyzed by using the univariate, bivariate with chi-square, and multivariate with logistic regression as well. The bivariate analysis results showed that the results were significant on the variable of body mass index (p=0.012, OR=5.667) and work period (p=0.026). While there was no significant correlation between the variables of exercise habits with the incidence of low back pain (p=0.407).The multivariate analysis results found that the variable of the work period was the variable that had the biggest effect on the incidence of low back pain (OR=0.361). There are correlations between body mass index and work period with low back pain incidence at Informal Sector tailor in Solor, Kupang City in 2019.