Abstract: The aim of the present research was to indices and characteristics of scale validation for family problem solving scale. The sample size of 55 couples (110 people) were selected among married men and women in Tehran and assigned to adjusted/compatible and maladjusted/incompatible groups. ENRICH marital satisfaction scale and the new FPS scale was used as research tools. Analysis of the aspects revealed 2 aspects out of 30: communication and problem solving. Studying internal correlation of total scores of the scales and subscales showed the association rate between total score and the aspects of communication and problem solving was 0.95. Reliability index of total score re-test was 0.91 and that of communication and problem solving was 0.78 and 2.89, respectively. Internal correlation of total score, communication and problem solving was 0.91, 0.78 and 0.83, respectively. As this scale is significantly associated with ENRICH marital satisfaction scale, is permanent and can distinguish adjusted/compatible and maladjusted/incompatible couples, it can be applied for clinical and research purposes.