Globally, reported cases of parental child neglect are between 25-50% of all children below eighteen years. neglect means the failure of a parent or other caregivers who have responsibility for a child to provide necessary clothing, shelter, food, medical care or supervision to the extent that the child’s safety, health, and well-being are endangered According to the statistics, it is evident that child neglect is an imminent global catastrophe. WHO also established that most female children who face neglect at childhood are likely to fall victim of the teenage pregnancy and the risk of teenage pregnancy rises with the number of adverse childhood experiences. Parental neglect does not only affect physical developments, but it leads to behavioral and emotional problems. Behavioral and emotional problems are categorized into externalizing and internalizing problems. In Naivasha Sub County in Nakuru County, there has been a disturbing rise in child neglect, leading to an outcry by the number of children dropping out of school. This has raised concern among the stakeholders of the Sub County such as Education Ministry, World Vision (sponsor), parents, teachers, politicians and religious leaders into raising concern over possible causes of teenage pregnancy in Naivasha Sub County. Thus, there is a need to investigate relationship between parental neglect and children’s social-psychology development in Naivasha Sub-County Kenya. The researcher employed a descriptive research design. The design was appropriate for this study because it allowed the researcher to obtain adequate and credible information on the subject without manipulating the subjects. The target population of this study was 5000 parents of the 6260 children in 78schools in Naivasha sub-county. The target population in this study comprised of parents ofchildren in the ages 4-7 years in public and private primary schools in Naivasha Sub-County. Data was gathered using questionnaires. The study findings indicated that alcohol was the most abused drug in the area, followed by miraa (khat), bhang and cigarettes in that order. The findings on parents’ involvement revealed that fathers participated more in pre-school activities that related to financial support and less in those that required them to sacrifice their time on children’s social-psychology development. Therefore, there is need to increase parents’ awareness on the importance of getting involved in children’s social-psychology development on and this could be done by encouraging parents to attend provide reading materials and reading the child. Further findings showed that parent’s education level was found to affect their involvement in their children’s social-psychology development. Most parents in Naivasha Sub-County were found to be learned and capable of supporting their children’s social-psychology development via reading and listening to them. The study also recommends that schools should develop platforms that will help improve fathers' homework supervision by starting up seminars for fathers that clarify the practice of assisting children’s social-psychology development.