The purpose of this study is to validate the structure of the types of parenting behavior of grandchildren by paternal grandmothers and maternal grandmothers, and then understand them. Methodology Q, which is a research method employed to study people’s subjective points of view, was used. Forty Q statements (Q-samples) were derived from the Q population (Concourse) and arranged in order by each of the 35 participants following the normal distribution grid (from -4 to +4). The QUANL program was used to analyze the data collected. The four types of parenting behavior of grandchildren by grandmothers include the “type of parenting behavior for enhanced character,” “type of parenting behavior for enhanced emotions,” “type of parenting behavior for developed social skills,” and “type of parenting behavior for enhanced health.” The findings suggest that grandmothers who rear their young grandchildren need to be provided with educational programs appropriate for each type to achieve optimal growth and development.