Kaumarbhritya is a branch of Ayurveda that deals with the care of infants and children, as well as their ailments and management. Charaka Samhita, Sushruta samhita,and Astanga Hridaya are the three bruhat trayi. The three major components of ancient Indian medicine i.e Ayurveda. Despite the fact that acharya charak is known as the father of medicine and acharya sushruta as the father of surgery, astanga hridaya, a comprehensive text and a part of bhruhat trayi, is ideal for quenching ones thirst for knowledge.Though the main text of this branch is consider to be kashyap Samhita which is incompletely available, As a result, scholars must rely on other authoritative texts to gain knowledge of the subject.This article aims at reviewing the knowledge about Kaumarabhritya in Bruhat trayi.After thorough review it was found that the considered text describes all important concepts of Kaumarabhritya ,diseases of children which caters to the needs of students,scholars and practitioners.