This paper aims to identify the developmental characteristics of language in preschool children, capturing the impact of the speech therapy program on language development, and utilizing the principles of the TALK program in speech therapy intervention. The study sample consisted of 22 preschoolers, aged between 5-6 years, from a kindergarten in Cluj-Napoca. After dividing the participants into two groups, control and experimental, the evaluation was performed using three assessment tools: the Curriculum TALK, Portage (Language subscale), and the Logopedic Album. A speech therapy intervention program was implemented for the experimental group, followed by a final evaluation conducted using the same assessment tools. After collecting the results from pre and post-tests, all data were centralized in an SPSS database for processing. Thus, by using the paired samples t-test (hypothesis 1), the independent samples t-test (hypothesis 2), and Pearson’s bivariate correlation (hypothesis 3), it was found that all research hypotheses were confirmed.