The study intended to establish the relationship between Investment Decisions and growth of selected business enterprises in Makindye Division, Kampala District. It was guided by four objectives which included determining; the demographic characteristics of respondents, the level of Investment Decisions , the level of  growth of selected business and the  significant relationship in level of Investment Decisions and growth of a business enterprise in Makindye Division. The Researcher made questionnaires used to collect data from 278 business owners selected purposively. A descriptive corelational, cross-sectional and expost-facto design were used. Data analysis was done using frequencies, percentages, means, and Pearson linear correlation coefficiency (PLCC). The findings indicated that most respondents were male 146 (52.5%), followed by female who composed of 132 (47.5%).The researcher recommended, that care should be taken for investment, finance, dividend, investment, and working capital in an enterprise is to cope-up with growth. The researcher concludes that the levels of Investment Decisions and growth of business enterprise were both generally satisfactory among the enterprises. Once the above aspects are attended to, Investment Decisions is very useful vice to growth of selected business enterprises.