The aim of the present research is to investigate the effect of the Humanistic Approach (HA) on developing the Communicative Competence (CC) for the EFL second year preparatory school students. The study adopted the experimental design. 61 preparatory school students, in Zagazig Preparatory School for Girls, were participated in the present study. Participants were randomly assigned to two groups; an experimental group and a control one. First, the participants in the two groups completed the communicative competence test. Next, the students of the experimental group received the Humanistic Approach based- instruction, through applying the Community Language Learning (CLL) method. Participants in the control group received the regular instruction. After administering the experiment, all the participants in the two groups completed the communicative competence posttest. The pre-test-treatment-posttest design allowed an assessment of the effect of the Humanistic Approach within the experimental group and against the control group. Collected data were analyzed using the Statistics Package for Social Science (SPSS). Findings revealed that the experimental group students' communicative competence improved as a result of using the program based on the Humanistic Approach. In addition, they outperformed their peers in the control group, in the communicative competence posttests. Finally, the study carried important recommendations and suggestions for further research.