Early childhood is a time when almost all of the child's potential is experiencing a sensitive period to grow and develop rapidly and violently. This growth and development are influenced by nutritious and balanced food intake and intensive stimulation by parents. If children are given intensive stimulation from their environment, especially in the family, then children will be able to undergo their developmental tasks well. This study aims to analyse parents' knowledge and behaviour in providing early childhood development stimulation. This study used a descriptive correlational design with a cross sectional approach conducted at RA Qurrota A'yun Kepanjen Malang Regency East Java Indonesia in 2023 which was attended by 56 respondents. The result of this study is that there is a relationship between knowledge and parental behaviour in providing developmental stimulation in early childhood with a p value of 0.003 and a relationship strength of 0.390 which reflects that the strength of the relationship is quite strong and positive.