Introduction: Emotional intelligence (EI) refers to the ability to perceive, control and evaluates emotion. Research results found that EI is relevant to organizational development and manpower development. It is also important to academic success, emotional adaptability, stress management and other lifestyle issues. EI principles help one to understand and assess people's behaviors, interpersonal skills, attitudes and potentials. It also plays an important role in human resource planning, job placement and recruitment interviews and selection, business development, customer care services, and more. The study focused on exploring students’ EI, subscales of EI (i.e., personal competencies and social competencies) and its associated factors. Methods: A cross-sectional study was conducted on 571 medical students from year 1, 3 and 5. Years of study, gender, and ethnic groups were included as factor variables. USM Emotional Quotient Inventory (USMEQ-i) was used to measure EI, personal competence and social competence. Results: Years of study significantly associated with EI (F = 18.41, p < 0.001), personal competency (F = 16.93, p < 0.001) and social competency levels (F = 12.92, p < 0.001). There was a decreasing pattern of EI, personal competency and social competency level as medical training progresses. Male significantly had a higher EI (t = -1.99, p < 0.05) and personal competence (t = -1.99, p < 0.05) levels than female medical students. Nevertheless, male and female students had equal levels of social competence (t = -1.39, p = 0.730). Ethnic groups demonstrated no significant association with EI, personal competency and social competency level. Conclusion: This study found that years of study were the main associated factor, followed by gender. In addition, there is a cause of concern regarding the decreasing pattern of EI throughout medical training. Further research is required to investigate this concern, so that appropriate intervention can be taken to alleviate the concern.