The purpose of this research is to determine the incidence of gender, nationality and age diversity in the functioning of the Board of Directors. The study considered a population of 585 public limited companies, which reported to the Financial Market Commission in the period 2015-2017 their corporate governance and social responsibility practices. The study of the descriptive - correlational type, considered in the first instance a descriptive statistical analysis regarding the adhesion of corporate governance practices and diversity in the boards of directors, in addition a correlational analysis of the study variables was carried out, finally, with the determination of the impact of the diversity of the board of directors on its proper functioning. Among the main results, the functioning of the board of directors is at an incipient level, its composition is highly homogeneous, characterized in male, Chilean and age 50 and 70 years, while the incidence of diversity in the operation the board of directors is almost imperceptible and insignificant.