This study aimed to investigate the impact of a Parenting Program, which was developed for parents of preschoolers, on children's behavioral problems. The study sample included 38 children between the ages of 4 and 6 attending an independent kindergarten in Kecioren District of Ankara Province, and their parents (38). The study adopted an experimental design with a pretest-posttest control group. The Parenting Program, which was developed through a needs assessment, was given to 19 mothers in the experimental group once a week for 11 weeks. The experimental group was administered a follow-up test 6 weeks after the training. The study findings demonstrated that the Parenting Program effectively reduced the behavioral problems (internalization and externalization) of the children whose mothers participated in the education program (Sevgi Kindergarten) and these effects were maintained.