A biological material fixed carrier enclosing tip, a biological material fixed carrier treatment apparatus, and a treatment method thereof. An object is to obviate attachment control and suction control for storing and retaining the carrier in the tip form vessel, to simplify complex reaction processes, and to make processing of the biological material fixed carrier to be easily executed as a result of a small-scale device configuration. The biological material fixed carrier enclosing tip comprises: a tip form vessel having an installation opening part that is installable to a nozzle that performs suction and discharge of gas, and a narrow tube that possesses an opening, through which fluid inflow and outflow is possible by means of the suction and discharge of gas, that is narrower than the nozzle; a carrier in which a predetermined biological material is fixed or fixable in a plurality of different positions that are determined beforehand that are distinguishable from the exterior, and has a size or a shape that is able to pass through the opening; and an enclosing section provided on the tip form vessel that encloses the carrier within the narrow tube in a state where it is able to make contact with the fluid that has flown into the narrow tube from the opening.