Objective To study the influence of the professional family intervention on cohesion and adaptability of breast cancer patients.Methods One hundred and twenty-eight breast cancer patients were randomly divided into control group and intervention group in equal number.The control group was given conventional nursing and the intervention group interventions including nursing instruction for their families and caregivers,mental instructions,and regular follow-ups in terms of life and rehabilitative instructions.A Family Adaptability and Cohesion Scale(FACESII-CV)was used for assessment before and after intervention.Result After intervention,the score on cohesion and adaptability of the intervention group were significantly higher than those of the intervention group before intervention and the control group(P<0.05).Conclusion The professional family interventions can effectively improve the family cohesion and adaptability of breast cancer patients.