Based on the life-history theory，this research aims to find out how the impact of childhood experiences have on interpersonal trust in adulthood and what the intervening mechanism is. It also examines how the effect of perception of current environment have on interpersonal trust. The results of this research suggest：（1）Childhood resources have a significant positive prediction on the level interpersonal trust in adulthood. People who grew up in a relatively resource-scarce environment have lower interpersonal trust than those who grew up in a resource-plentiful environment.（2）Interpersonal trust in adulthood have significant difference based on different subjective socioeconomic status in childhood. People with higher socioeconomic status in childhood have higher interpersonal trust than those with lower socioeconomic status in childhood.（3）Childhood instability has a significant reverse prediction on the level of interpersonal trust in adulthood，which security is the intervening mechanism. That means greater early-life unpredictability may influence interpersonal trust in adulthood through security.（4）The perception of the current environment will affect the interpersonal trust. It will damage interpersonal trust when people feel more pressure in current environment. But the effect does not depend on people’s childhood experiences. It is of great value to pay attention to early childhood growth environment and keep society stable，which can be benefit for the harmonious and healthy development of society.