The present invention is to identify the type of the farm product in a view through the wearable terminal and display the expected harvest time on the display of a wearable terminal in augmented reality. The system for displaying the harvest time of a farm product on the display of a wearable terminal, includes: an image acquisition unit that acquires the image of a farm product in a view through the wearable terminal; an identification unit that analyzes the image and identifies the type of the farm product; a selection unit that selects a determination criterion according to the type; a determination unit that analyzes the image based on the determination criterion and determines the color and the size; an estimation unit that estimates the harvest time of the farm product based on the determination result; and a harvest time display unit that displays the estimated harvest time of the farm product seen through the display of the wearable terminal thereon in augmented reality.