This quantitative, explanatory, correlational and cross-sectional research was carried out during the month of October to December of 2019, with the purpose of determining the relationship between Maternal and Institutional Factors and Psychomotor Development in Preschoolers. The sample consisted of 146 preschoolers of the C.S. "Melvin Jones." For the data collection, the 2 - 5-year psychomotor development test (TEPSI) was used, a “Maternal knowledge level on early preschool stimulation and a questionnaire on institutional factors of the growth and development program”. The results are presented in statistical tables. It is concluded with respect to maternal factors that 85.6% are young adult mothers, 72.6% are housewives, 45.9% have full secondary education and 64.2% have a medium level of knowledge about early stimulation; Regarding institutional factors, 57.5% consider the locatio...