A method of detecting dispensed quantity for detecting a liquid quantity of liquid suctioned and discharged by a dispensing apparatus having: a plurality of pipette tips attached to a plurality of nozzle members provided in a nozzle head; a liquid suctioning/discharging mechanism for said plurality of pipette tips provided in the nozzle head; a plurality of pressure sensors that link to the nozzle members respectively and detect a pressure inside said each of the plurality of pipette tips; and a lifting and lowering mechanism for said a plurality of pipette tips, wherein said method comprises: an insertion step for inserting a distal end of each of said pipette tips into a deepest zone of each of a plurality of container that accommodates liquid to be measured, which is a position that is distanced upward from a bottom of said container with a certain gap and is a position where suction of the liquid accommodated inside the container is possible, wherein the pipette tip is lowered by a distance from a position substantially vertically immediately above an opening section of the container to the deepest zone, and the lowering is stopped at the deepest zone and a suction position is decided when the distal end section has reached the deepest zone; a suction pressure measuring step for measuring a pressure change during suctioning, while suctioning said liquid into said pipette tip at a predetermined suctioning rate without moving said pipette tip; and a suction detecting step for detecting a suction state based on a measured pressure change, a shape of said pipette tip, said predetermined suctioning rate, and a period of suction time. a plurality of pipette tips attached to a plurality of nozzle members provided in a nozzle head; a liquid suctioning/discharging mechanism for said plurality of pipette tips provided in the nozzle head; a plurality of pressure sensors that link to the nozzle members respectively and detect a pressure inside said each of the plurality of pipette tips; and a lifting and lowering mechanism for said a plurality of pipette tips, wherein said method comprises: an insertion step for inserting a distal end of each of said pipette tips into a deepest zone of each of a plurality of container that accommodates liquid to be measured, which is a position that is distanced upward from a bottom of said container with a certain gap and is a position where suction of the liquid accommodated inside the container is possible, wherein the pipette tip is lowered by a distance from a position substantially vertically immediately above an opening section of the container to the deepest zone, and the lowering is stopped at the deepest zone and a suction position is decided when the distal end section has reached the deepest zone; a suction pressure measuring step for measuring a pressure change during suctioning, while suctioning said liquid into said pipette tip at a predetermined suctioning rate without moving said pipette tip; and a suction detecting step for detecting a suction state based on a measured pressure change, a shape of said pipette tip, said predetermined suctioning rate, and a period of suction time. an insertion step for inserting a distal end of each of said pipette tips into a deepest zone of each of a plurality of container that accommodates liquid to be measured, which is a position that is distanced upward from a bottom of said container with a certain gap and is a position where suction of the liquid accommodated inside the container is possible, wherein the pipette tip is lowered by a distance from a position substantially vertically immediately above an opening section of the container to the deepest zone, and the lowering is stopped at the deepest zone and a suction position is decided when the distal end section has reached the deepest zone; a suction pressure measuring step for measuring a pressure change during suctioning, while suctioning said liquid into said pipette tip at a predetermined suctioning rate without moving said pipette tip; and a suction detecting step for detecting a suction state based on a measured pressure change, a shape of said pipette tip, said predetermined suctioning rate, and a period of suction time.