Preschool children are of paramount importance in determining the future behaviors of children. Preschool behavior problems are now being recognized as clear some disorders are more common than others, and conditions range from mild to severe. The common behavioral problems identified in children includes Habit problems, Problems of eating, Sleep Problems, Speech problems, Scholastic problems, psychosexual problems, Personalityproblems and Psycho social problems. Often, a child will be having more than one disorder.1

   Working women will have less time at her disposal for child care. The working mother has both positive and negative impact over the child’s development. Hence the researcher intended to identify behavioral problems of preschool children of working mothers and to compare with that of non-working mothers. An awareness of the prevalence of these problems is important to plan mental health services for children in order to improve the quality of life of the affected children. There is no more crucial period of life than the age Perera H, Gunatunge C. Screening for mental health problems in urban preschool children- A pilot study. Sri Lanka Journal of Child Health 2004; 33 (2):39-42. up to six years. Preschool behavior problems are now being recognized as clear indicator of difficulties that may persist in Vijayalakshmi K, Kumar CV, Rajamanickam H, Cherian A. Child rearing practices and psychological problems in children. Nursing and Midwifery Research Journal 2007 Apr; 3(2):49-51to later childhood and that may indicate family dysfunction. Screening is necessary to detect developmental problems in preschool children. Therefore various problems always require special attention.