The impact of the five basic human emotions on investment decisionmaking, which focuses specifically on Generation Z investors in Surabaya, Indonesia, is investigated in this study. The research sample includes 180 Generation Z respondents with prior investing experience. To test the hypotheses, Amos used structural equation modeling (SEM). Exogenous variables are the five basic emotions (happiness, hope, anger, sadness, and fear), and endogenous variable is investment decision. According to the study findings, only two basic human emotions, anger and hope, have a significant influence on investment decisions among Generation Z investors in Surabaya. However, the remaining three primary emotions, happiness, sadness, and fear, have no significant impact on investment decisions. As a result, investors must be mindful of their emotions, particularly during times of anger and hope, to make more accurate investment decisions.