Background: The purpose of this study was to look into how family involvement affects children’s language development. To accomplish this, a ”Family-Based Language Skills Strengthening Program” [FBSLP] was created. Method: The mixed-method study included seven third-grade students and their families. Before beginning the program, a language skills exam was conducted as a pre-test and post-test, and then ten-day activity schedules were distributed to families via online meetings during the 50-day implementation period. After 10 days, the families evaluated the method. The program includes language-development activities including interactive read-aloud books, museum and park visits, and encouragement for families and children to create journals. Results: The study found that, in addition to improving children’s language skills, there were benefits in attributes such as healthy parent-child relationship and children’s acquisition of reading habits. Conclusion: It was concluded that FBSLP is effective in the development of children’s language skills. In line with these results, recommendations are presented for both researchers and families.