A descriptive study was conducted on 50 antenatal mothers in Rama Medical College Hospital and Research Centre, Mandhana Kanpur, to evaluate the knowledge of antenatal mothers regarding breast feeding in selected hospital Kanpur .50 antenatal mothers were selected by convenient sampling technique. The validity and reliability of tool was established. Closed ended questionnaire were used to collect the data. The data was collected and analyzed by using descriptive and inferential statistics. The result of the study revealed the most of the antenatal mothers 42(84%) had average knowledge, the overall mean knowledge and standard deviation scores were 17.08±3.13.,There are 7% antenatal mothers had good knowledge,. Most of the antenatal mothers had average knowledge regarding general aspect of breast feeding. there was no association between the knowledge score and selected demographic variables such as age, religion, type of family ,monthly family income and occupation status.