The present study has been done in order to examine and compare problem solving and dyadic adjustment in exceptional and normal children mothers. This research is a descriptive plan of Causal-comparative type. The study population includes all handicapped and normal children mothers of Mashhad that 63 individuals has been selected among exceptional children mothers and 67 individuals has been selected of normal children mothers by available sampling. Data has been obtained by Cassidy and Long problem solving questionnaire and Dyadic Adjustment Scale(DAS) and has been analyzed by independent T-test and Pearson correlation coefficient. The results showed that marital adjustment of exceptional children’s mothers was significantly less than normal children’s mothers ( t= 8/8,p<0/001). When facing a problem, mothers of exceptional children use Lesser efficient style of problem solving ( t= 7/02, p<0/001). When as, they use more Inefficient style of problem solving ( t= 8/08,p<0/001). An handicapped child in a family has effect on marital adjustment and styles of problem solving of mothers. according to findings of this study revealed that marital adjustment and its dimensions as agreement between two people, twosome Correlation, expression of love, marital satisfaction of exceptional children’s mothers was less than normal children’s mothers. Therefore, can conclude that inefficient style of problem solving in family cause difference between family members and for this reason, is reduced marital adjustment. Hence, special courses about family training and individual and group counseling on problem solving skills and coping strategies with stressful issues of life are necessary for parents of exceptional children, until improve relationships between family members and couples.