The concept of quality of life has been associated with that of illness and conceived as the relationship between the effects of this disease, those attributed to treatment, and subjective experiences that allow knowing the physical, social and emotional functioning of the patient. Given the lack of studies that evaluate the quality of life in children with congenital heart disease in our country, and even more so the lack of knowledge of the impact of surgical correction in this age group, this study was proposed with the objective of determining the quality level of life perceived by children and their caregivers, in a population of 2 to 12 years with congenital heart disease before and after a corrective or surgical palliative procedure through the application of the PEDSQL pediatric cardiovascular life scale. Through a prospective observational study, with a sample size of 28 patients aged 2 to 12 years with congenital heart disease before and after a corrective or surgical palliative procedure in the Cardiovascular Foundation of Colombia through the application of the quality scale of life PEDSQL. This study has the endorsement of the ethics committee. The population had an average age of 5.6 years, 64.3% of males. The CIA was the most frequent diagnosis and the most frequent procedure was the repair of atrial septal defect. 76% had an Aristotle of 2 or less, 82.6% had a STAT scale of 2 or less and the total of the study population had a RACHS of 3 or less. The global average of PEDSQL in children before was 67.5 and then was 80.6 (p = 0.003), in the parents it was 68.1 before and 67.4 after (p = 0.825).