With the development of social economy,the process of aging in urban and rural areas is accelerating,and the traditional way of providing for the elderly is difficult to meet the actual needs.Seeking new ways of providing for the elderly is an important way to break through the current plight of old age.This paper reviews the status quo of the research on the"mutual aid pension mode"and analyzes the relationship between the participation intention of the urban and rural middle-aged and the basic characteristics and the specific influencing fact...