Purpose: To examine the effects of psychological interventions on child and parent mental health outcomes for economically disadvantaged families. Method: Systematic review and metaanalytic procedures were used to synthesize the results of randomized controlled studies published between 1980 and 2018. Results: The search yielded 8 studies that included results for 1538 families in total. The risk of bias varied across studies. The meta-analysis results suggest a small positive effect (g = 0.38, p < .001) on child behavioral problems. Heterogeneity was relatively high and significant. We also found small to moderate effects on parenting stress, parental depression, and parenting quality (g ranging from .30 to .51). Discussion: The findings of this review suggest that psychological interventions for economically disadvantaged families are effective, with effect sizes that are comparable to those of interventions delivered to ordinary families. Implications for further research and practice are discussed. Keywords: psychological intervention, mental health, economically disadvantaged families, meta-analysis