Abstract: A store server and a picking robot are included. The store server includes an order reception unit that receives an order for a product from a customer terminal, and a picking processing unit that instructs the picking robot to pick a product related to the order from a display shelf and convey the product to a delivery locker. The picking robot includes an arm, a picking means installed at a tip end portion of the arm, and a sensor installed near the tip end portion of the arm, detects an object by image processing from an image of a display level on which the product is displayed, the image being photographed by the sensor, identifies which object the product is by image recognition processing based on a recognition model set for each product regarding each object, and moves the picking means to a position where the product is able to be picked.