A method for assisting proximity sensor-based product picking, comprises: deriving a product to be currently picked from a picking product list; selecting a first user terminal positioned in a first region where the product to be currently picked is displayed; moving a cart including a plurality of picking boxes within a certain distance from the first user terminal; when the cart is positioned within the certain distance from the first user terminal, stopping movement of the cart; providing information about the product to be currently picked to the first user terminal; and when picking completion information is received from the first user terminal, deriving a product to be picked next from the picking product list, wherein a distance between the cart and the first user terminal is determined on the basis of a proximity sensor.