The increase in the Elderly population during the current era is so significant that World Health Organization [WHO] has stated that nowadays, a revolution in demography is about to occur globally. As the age grows, the number of the chronic diseases of the last years of life grows too. Although these diseases are lethal by themselves, they can threaten the life quality of people and lead to early and severe disabilities. Therefore, this article investigates Primary healthcare promotion practices, Lifestyle, and Chronic Diseases among the Elderly of Zahedan City. Methodology: This is a sectional descriptive analysis and the study population includes every living person in Zahedan city who was 60 years old or more ate the year 2015. The statistical universe size was 30,000 people. The required data were gathered by questionnaires and later analyzed by SPSS [v. 21] software. Findings: Findings showed that most of the Primary Healthcare Promotion Practices were neglected in our society. The highest average mark for lifestyle belonged to prevention among the graduated people and its lowest belonged to sports and leisure among illiterate people. On the other hand, the highest average mark for lifestyle was inprevention field and among those who did not have chronic disease and its lowest was in sports and leisure field among the chronic diseases patients. Conclusion: By adjusting the lifestyle and improving the personal healthcare and doing the primary healthcare promotion practices, many of the chronic and inflectional diseases can be prevented. Therefore, it is necessary to raise people’s awareness before entering the elderly to modify the lifestyle and implement the primary healthcare promotion principles and avoid many chronic and inflectional diseases
