ABSTRACTObjective:To determine the effectiveness of the educational program based on self-regulation of learning in the level of knowledge about COVID-19 in the soldiers.Methods:Pre-experimental study with a pre-test and post-test design with a single group, carried out in 2020. 179 soldiers from Puno, Peru participated. Two expository-participatory sessions and a demonstrative workshop were developed. A valid (Aiken’s V = 0.69) and reliable (McDonald’s Omega = 0.81) questionnaire was used. The Friedman’s test was used to compare the results pre and post-test.Results:The level of knowledge about COVID-19 and in two of its dimensions changed from poor (pre-test) to regular (post-test). However, in the preventive measures dimension, it changed from poor (pre-test) to excellent (post-test).Conclusion:The proposed educational intervention was effective in increasing knowledge about COVID-19 in the soldiers, mainly in terms of preventive measures.