Monitoring fetal wellbeing crucial during pregnancy particularly for the primi mothers. This study explore the significance of antenatal care in ensuring maternal health and optimizing fetal wellbeing among primi mothers. The present study was conducted to Asses the Video assisted teaching on knowledge regarding fetal wellbeing among primi mothers attending antenatal OPD at Mariyampur and Dufferin hospital Kanpur, U. P. The research study conducted under Rama University. The data collected and analysed based on descriptive and inferential statistics.60 sample were collected by using Non-probability convenience sampling technique. The validity and reliability of tools was established. The data was collected by using self-structured knowledge questionnaire. The result of the study showed that in pre-test 28(46.66%) primi mother had inadequate knowledge, 30(50%) primi mother had moderate knowledge, 2(3.34%) primi mother had adequate knowledge and in the post-test knowledge score 48(80%) primi mother had moderate knowledge, 12(20%) primi mother had Adequate knowledge. The post-test mean score (16.35) was high when compare to the pre-test mean score (11.05). And the obtained “t” value 17.23 was greater than the value of df 59 which was p<0.05 level (2.00) of significance hence the formulated research hypothesis H1 was accepted. and the null hypothesis H01 rejected The test revealed that there was no significant association of knowledge with selected socio-demographic variables such as Age, and there was significant with association with religion, education, occupation, family, monthly income, previous knowledge, were found significant at <0.005 level of significance. Hence the research hypothesis H2 was accepted, and H02 was rejected. The study concluded that the video assisted teaching was effective and it help to improved knowledge of primi mothers regarding fetal wellbeing.