Whether young children can develop healthily depends a lot on the family environment where they grow up in. Risk factors, such as low family income or health issues within the family, may pose threats to young children's development. To mitigate the effects of these risk factors, the research team has developed a community parenting program titled "Amazing Start", which aims to improve young children's well-being through the provision of parenting interventions to the families with known risk factors. The parenting interventions include one-to-one coaching on parent-child interactions as well as parent support groups that are led by social workers. This 2-year study aims to investigate the effectiveness and sustainability of the "Amazing Start" community parenting intervention program for at-risk families across three districts in Hong Kong using a randomized controlled trial. Participating families are randomized to either the experimental group, where parenting interventions are provided for a period of 9 months, or the wait-list control group, where no parenting intervention is provided during this 9-month period. Pre-test and post-test are conducted to assess the development of young children, as well as the parental stress, parental sense of competence, and parental satisfaction of the participating families. The wait-list control group receives the parenting intervention after the post-test.