Inclusion Criteria:  The parent who has a child with the diagnosis of AD/HD made by qualified professionals. The child does not have co-morbid developmental disabilities such as Autism Spectrum Disorder and Intellectual Disability. The child is attending P.1 to P.4 in local primary schools, age between 6 and 10.  Exclusion Criteria:  Parent who has previously received training in Mindful Parenting, Tuning in to Kids, or other 8-weeks mindfulness program. Parent who has serious mental health condition that rendering him/her incapable of participating in the intervention program.