Based on resource-gain-development perspective and the interpersonal process model of intimacy, the purpose of the present study was to explore the impact mechanism of family supportive supervisor behavior(FSSB) on the work support from spouse. The current study was conducted with a questionnaire survey by taking 301 Chinese dual-earner couples as the subjects. The questionnaires included Family Supportive Supervisor Behavior Questionnaire, Work-Family Enrichment Questionnaire, Work Support from Spouse Questionnaire and Marital Closeness Questionnaire. The results showed that:(1) family supportive supervisor behavior positively predicted the work support from spouse through increased employee’s work-family enrichment;(2) marital closeness moderated the indirect effect of family supportive supervisor behavior on work support from spouse through work-family enrichment, such that the relationship between work-family enrichment and work support from spouse was stronger and positive among individuals who reported higher levels of marital closeness while it was weaker or null among those who reported lower levels of marital closeness.