The present disclosure provide a method for extraction of fibers and pulp from a banana stem with alkali recovery, includes separating (102) an outer bark from the  banana stem, cutting (104) the separated outer bark to obtain a fragmented long outer bark, hydrolyzing (106) the fragmented outer bark to remove impurities, treating  (108) the obtained outer bark by way of vibrational energy in a frequency ranging from 20-40KHz, soaking (110) the obtained sonicated outer bark in an alkali solution  to further obtain defibrillated fibers, extracting (112) the obtained defibrillate fibers from the soaked outer bark to obtain fiber and scutchers, delignification (114) of the  obtained scutchers in an alkali peroxide solution to obtain a lignin-free fiber, washing (116) the obtained lignin-free fiber to remove impurities and further obtaining a  pure fiber, and beating (118) the obtained pure fiber to obtain a pulp. Figure 1 will be the reference figure.