In the context of early childhood, which is in the golden age, an integrative holistic intervention requires a family microsystem. The fact shows that there are still many mothers who have low communication skills so that they unconsciously commit communication barriers such as shouting, blaming, scolding, comparing or belittling children. Overcoming this situation mothers cannot only be blamed but need to be trained in the form of parenting training. To be effective in training, it identifies a strategy that is appropriately tailored to its goals and context, relevant to the actual situation, can solve problems and can connect knowledge received with the actual situation. Research respondents were 20 mothers who had children aged 3-5 years in Non Formal PAUD Institutions, middle to lower education, and aged 20-35 years. Action research follows the Kemmis and McTaggart stages. PBL training syntax follows the 5 stages of Eggen and Kauchak. The intervention was carried out in two cycles of eight meetings with a target of 75% success: data obtained through questionnaires, completed with observation, interviews, and intensive discussion. The results of the study were processed through descriptive statistical data analysis techniques and enriched with qualitative data analysis. Pre-cycle was 48.5%, after the first cycle intervention showed an increase to 62.65%, and followed by the second cycle where the mother's ability to communicate with children was 76.03%. The PBL strategy is recommended in parenting training for mothers who have early childhood in Non Formal PAUD Institutions.