Since 2019, Hong Kong has been experiencing a social and mental health crisis caused by social unrest and the COVID-19 Pandemic. As a result, there have been reports of increasing family conflicts among secondary students. With the understanding that family support and positive relationships are crucial for maintaining the mental well-being of young people, narrative therapy is a practical approach for helping families shift from problem-focused perspectives to empowering strategies for rebuilding positive relationships. The study aims to report on the effectiveness of a pilot group parent narrative therapy workshop for family relationship harmonisation and enhancing parenting competency using quantitative and qualitative methods. The study participants included 34 parents from five local schools. The results indicated a significantly increased sense of parental competency, general self-efficacy, adult hope, and decreased parental stress. Qualitative reports and participants' narratives also demonstrated the positive effect of the narrative therapy workshop on their parent-adolescent relationships.