Purpose: To find out distribution of financial attitude, financial behavior, financial knowledge and financial literacy on the investment decision behavior of young investors. Research design, data and methodology: The population in this study are young investors aged 18-25 years. The population in this study were all young investors aged 18-25 years. The sample size was 110 people which was determined using the minimum sample method. The analytical tool used in this research is multiple linear regression analysis. Results: Distribution of financial attitude, financial behavior, financial knowledge and financial literacy have a positive and significant effect both simultaneously and partially on the investment decision behavior of young investors. Conclusions: Young investors with a positive attitude tend to take higher investment risks and are more motivated for long-term investments. Good financial behavior, such as budget management and savings, contributes to smart investment decisions. Good financial knowledge and literacy helps young investors recognize potential investment opportunities and mitigate risks.