Background: Birth weight is an indicator of the health status of a country. LBW remains a leading public health problem especially in developing country causes of childhood morbidity and mortality. Objectives: The objective of this study was to determine the relationship of nutritional status of mother influence neonatal outcome and the pregnant population admitted in labour ward of a tertiary level of public Hospital. Methods & Materials: It was a randomized cross-sectional study, conducted in Dhaka Medical College and Hospital of the Department of Obstetrics & Gynaecology over a period of six months from January 2010 to June 2010. All women who were admitted to labour room with term pregnant (>37 wks), which was confirmed by early USG or LMP. The indicator low birth weight <2.5 kg of the infant was examined as an outcome variable in association with different socio-economic status, educational qualifications and occupation of mother and health-related other variables. Results: More than 53% of LBW neonates were born to mothers who were illiterate, whereas 18.5% of LBW neonates were born to mothers who were educated up to the primary level. Maternal education, as well as higher socio-economic condition, reduces the incidences of LBW which was statistically significant. Poor ANC was associated with LBW babies after adjusting for maternal age and parity. Most of the multi gravid women present with moderate anaemia and greater than 60% of anaemic patients were not regular ANC and a total of 23% no ANC at all. The adverse fetal outcomes in this study were 44.2%. Low birth weight 28.3% and NICU admission 5.8% were the most common adverse birth outcome overall study period. Conclusion & Recommendation: Every mother with poor nutritional status should be screened during the antenatal check-up and should be considered a high-risk pregnancy. For these mother’s special emphasis should be given to provide health and nutrition education.