Background: The emotional divorce considers a catastrophic problem in society as it destroys all family and has negatively effects on child psychological wellbeing and mother psychological hardness. Aim: The aim of this study is to assess the association between emotional divorce, mothers' psychological hardiness and child's psychological wellbeing. Design: this study followed descriptive correlational design. Setting :Basic education governmental school at Tanta city and Kafrelsheikh city Tools: The data was collected using three tools: Tool I: Ryff's Psychological Well-Being Scales (PWB), Tool II: Emotional Divorce Scale Tool III: Psychological Hardiness Scale Result: the basic result revealed that the highest percentage of the mothers have high emotional divorce and of majority of mother have lower psychological hardiness and most of children have mild psychological wellbeing , there is statistically significant negative correlation between children psychological wellbeing and mothers emotional divorce and negative correlation between mothers' emotional divorce and their psychological hardness Conclusion: the present study concluded that, emotional divorce affect mothers' psychological hardness and children psychological wellbeing . Recommendations: It is necessary to develop further scientific family program to improve spouses' mental health so they can cope with and adjust to life's challenges and stressors.