The present investigation tried to estimate the psychometric properties of the measuring instrument of sex addiction (MAS) in Colombian population. Initially, an expert judgment was carried out that allowed establishing the validity of content, then the MAS and the sexual inhibition / arousal scale (SIS / SES) were applied to 337 participants through a web form (google forms); finally, 312 that met the inclusion criteria. Cronbach's alpha was calculated obtaining good reliability. Pearson's correlation was adjusted as expected to the correlation with the SIS / SES test. The exploratory factor analysis generated 8 factors, establishing differences with the initially proposed factor structure.