This study considers influence of store environmental factors on Impulse buying behaviour towards apparels in Batticaloa District. The data were collected from 230 working women in formal sector with a structured questionnaire. Data were evaluated with, Bivariate and Multivariate analysis to explore the levels of the variables, their relationship and their influences. Women explored that store environmental factors influence on the impulse buying behaviour. The factors on store environmental factors as Music, Light, Store Layout and friendly store employees influence on impulse buying behaviour. Correlation analysis discloses that the relation between store environmental factors and Impulse buying behaviour is 0.393 at one percent significant level.