The present invention provides a system and method for extracting starch from green bananas. The system includes: a pretreatment module configured to grind and homogenize the green bananas so as to form green banana slurry； an extraction module configured to receive the green banana slurry, and configured to add an extraction solvent to the green banana slurry to generate an extracted mixture of green banana starch； a separation module, wherein the extracted mixture of green banana starch is held still in the separation module, so green banana starch precipitates and green banana suspensions are precipitated and separated； a first rinsing module configured to rinse green banana starch precipitates to remove any impurities except for the starch therein, thereby forming a banana starch cream； and, a dehydration module configured to remove water from the banana starch cream to form banana starch.
