The purpose of this study was to examine the relationship between maternal education and pre-school child morbidity in Kanchanaburi 2000. Maternal education was categorized in three levels (1) formal education (2) receiving health knowledge from the mass media (3) membership of community development group. The unit of analysis of this study was pre-school children whose ages were 0 to 6 years old. They were divided into three groups by physical development: infant, toddler, and child at pre-school age. Multinomial Logistic Regression was used to examine the effect of maternal education on pre-school child morbidity when controlled by maternal factors, child factors, household nutrition, and community factors. The overall study found that in the group who had received maternal education only though formal education, child morbidity was adversely affected. Considering the probability of sickness of pre-school children, infants and children of pre-school age of mothers with formal education only were more likely to be sick with a communicable disease than a non-communicable disease. The same applied to these mothers toddlers were. This study demonstrates a correlation between maternal education and preschool child morbidity. Education is an essential determinant factor on child health, thus investment in women’s education is important for lowering infant and child morbidity and mortality and child health.