Background. The improvement in health quality of the population is a continuing challenge for societies and governments. In spite of the many advances in medical practice and health sciences in past years, the vast majority of the population still barely meets the minimum standards for health care and human development. \nResearch Design and Methodology. This study attempted to determine and evaluate primary health care center’s’ in prevention of Communicable disease and control of environmental Health in Taif, Kingdom of Saudi Arabia The research subjects of the study were the five administrators, five medical directors, 20 doctors, 29 nurses and 154 clients of the selected primary health care centers.\n Results. Frequency of 166 or 77.93 percent, measles with 147 or 69.01 percent, tuberculosis (TB) with 134 or 62.91 percent, chickenpox, diphtheria, pertussis and tetanus with 128 or 60.09 percent, mumps with a frequency of 126 or 59.15 percent, bacillary dysentery with 105 or 49.29 percent, pneumonia with 103 or 48.36%, typhoid fever with 96 or 45.07 percent, and malaria with 95 or 44.60 percent. Occupying the 11th to 15th spot are cholera and dengue fever with a frequency count of 93 or 43.66 percent, schistosomiasis with 88 or 41.31 percent, leprosy with 78 or 36.61 percent and filariasis with a frequency of 72 or 33.80 percent. environmental health services provides by the Primary Health Care Centers in Taif, Saudi Arabia. On top of the list is food safety with a frequency count of 137 or 64.31%. It is followed by water sanitation with 123 or 57.74 percent, solid waste management with 122 or 57.28 percent, toxic and hazardous waste control with 116 or 54.56 percent, radiological protection with 111 or 52.11 percent, institutional sanitation with 109 or 51.17 percent, noise and air pollution control with a frequency count of 93 or 43.66 percent, proper excreta and sewage disposal system with 88 or 41.31 percent, and vermin and vector control with 83 or 38.97 percent.\nConclusions. In the light of the findings, the following conclusions were divulged .The Primary Health Care Centers in Taif, Saudi Arabia offers varied services to promote and maintain health; prevent illness and complications; and alleviate sufferings.