Psychopaths are usually characterized as having numerous troubles with social and emotional facets in their daily. In addition, these individuals generate a series of harmful situations to society, such as violence and crime. Due to this, it is very important to find those variables that can reduce these behaviors. In this regard, Emotional Intelligence (EI) or the ability to perceive, use, understand and regulate emotions is a potentially useful variable. EI has been categorized according to three main approaches: performance-based ability, self-report ability and self-report mixed models. Several studies have analyzed the relationship between EI and psychopathy, however inconsistent results have been found. These inconsistencies may be due to the EI model employed to measure it. The objective of our study is to systematically review the previous literature about the relationship between the three models of EI and psychopathy, both in the clinical and total population.Scopus and Medline were searched for finding relevant articles. 29 eligible studies were identified. The results were divided according to the EI model and the population used.The results for both the total and clinical population differ according to the measure of EI employed. Specifically, through performance-based ability models, the majority of studies find a negative relationship between EI and psychopathy, and when EI is measured using self-reports, the results are inconsistent. In conclusion, the results suggest that higher EI abilities measured through performance-based ability models - but not through self-reports - are related to lower psychopathy deficits. Limitations and clinical implications are discussed.