Objectives: Nowadays, in developed countries the rate of growing old population increases due to medical and public heath improvements, leading to increased life expectancy. So, providing a special elderly caring service system seems to be necessary. The purpose of this study was to compare the elderly- caring service pattern in Iran and in USA.

Methods & Materials: This systematic review aimed to investigate the literate related to the caring system of elderly in Iran and the USA. Sampling was goal-based and it was upon the dependence rate, relation between the topics and keywords.

Results: Although increasing the number of elderly people in the USA causes other people to be hopeful to reach to the old age, this makes a lot of significant problems for the young population in the society. Social security in the USA plays a great role in support of the elderly especially retired people financially. More than two third of the costs of health is paid for the elderly with chronic diseases. Medicare is a health insurance program in USA for elderly and handicaps (who has kidney transplanting, needs dialyze and kidney diseases), which its cost is provided by taxes, insurance and some of general incomes. Also, this program has provided the medical services for lower class and those who have no insurance.

Conclusion: Social security is an important source of income for retired and elderly people in the USA and other developed countries. Without this source of income, the large population of elderly (two third or 66.8 percent) will be poor in developed countries. In Iran the social security and insurance for increasing the quality of elderly life should be studied. In Iran, establishing NGOs can help us to solve a lot of these problems.