With the acceleration of the urbanization process, more and more rural old people enter the city life with their children, forming the special group of rural-urban immigration old people. After entering the city, they can not adapt well to the city because of the complicated family relationship, the shrinking of the relationship, the gradual decrease of the trust relationship and the impact of the value relationship. From the perspective of social relationship network, we could help to pay attention to the family network’s fundamental action, expand elders’ social interaction, remolding the social relationship of trust networks and adjust the value relationship networks of them to help the rural old people adapt to the city life.