Picking facilities are flexibly configured so that a desired article can be accurately picked from a storage location in a short time. A picking system is configured to include a container of which the upper surface is opened to contain the article; a caster rack of which the front surface is opened and where upper and lower plural stages of shelves on which the container is mounted are installed; a picking gate where upper and lower plural stages of horizontal bars attached with indicators of picking information are installed between vertical posts; and a picking information processing apparatus which processes the picking information and includes a management computer, a controller which controls operations of the indicators, and a handy terminal and an inspection processing terminal which transmit and receive information with the management computer.