Abstract: Based on a month′s survey in No.four villager group of Xiaogan，Hubei，we found that the problem of leftbehind old people in rural areas is particularly serious among the “three leftbehind” problems.Old people left behind in the countryside lack stable economic security，and hence their inadequate ability to resist risks.The shortage of family care and the insufficient communication between the old and the young have greatly contributed to the old people′s sense of loneliness.And the most prominent problem in recent years is abnormal death of the old people left behind in the countryside.According to the problems，the author suggests taking the construction of association of the elderly as the key point and breakthrough，so that we can explore a “low cost，high welfare” mode of practice，which really provides a sense of security，fun and worthiness for the leftbehind old people.

Key words: leftbehind old people, oldage care, abnormal death, the association of the elderly, mental welfare, intergeneration relationship