This study is an attempt to better understand the considerations of ethical decision-making intentions of Taiwan employees when they are faced with ethical dilemmas. Results indicate that the relationship between moral maturity and decision intentions is mediated by perceived moral intensity, and that the relationship between perceived moral intensity and decision intentions is moderated by perceived egoistic climate. Using a survey methodology, this study design a decision-making scenario to explore factors influencing the ethical decisions in which workers may be asked to make. Data are collected from 690 workers and conduct Regression and ANOVA to test the hypotheses. Normative implications are discussed, as are implications for future theorizing, research and management practice.