The aim of the research is to develop proposed designs for uniform uniforms on scientific bases to provide functional and aesthetic efficiency in accordance with the Kingdom's regulations and environment in accordance with the requirements of early physical and psychological adolescence.Methodology: The study described the current school uniform, the proposed uniforms, their qualifications and the problems faced by the students of this stage, as well as the field and applied studies. The sample consisted of a random sample of the school community. Students were identified as: intermediate students (200) (30), parents (30), and specialized arbitrators (10) in the cities of Makkah and Arar.The tools included: identification of an electronic survey, identification of the assessment of the proposed design for the specialists, identification of the evaluation of the proposed design for the teachers and parents, identification of the evaluation of the proposed designs for the students.The results indicated that there were statistically significant differences between the six designs according to the opinions of all the members of the research sample where it was found that the value of (P) was (50.854) which is a statistical value at level (0.01), and that the third design was the best designs according to For the opinions of all members of the research sample, then the first design, then the fifth design, then the fourth design, then the sixth design, and finally the second design.Recommendations: the establishment of a standard scale for Saudi girls for the early and late stages of adolescence, and the need to establish a factory for the production of uniform uniforms for the three stages of education in the Kingdom, which includes production lines in line with the standards of Saudi girls in addition to a customized unit for special cases under the supervision of the Ministry of Education Education, and recommends the implementation of a uniform dress policy on sports activities for male and female students.