A quantification tube, capable of achieving concentration quantification by means of centrifugal force. The concentrated quantification centrifugal tube includes a tube cover, a tube body, and a small volume trapezoid-column-shape tube body. The tube body is connected to the small volume trapezoid-column-shape tube body. The tube body can be filled with liquid substance, and the small volume trapezoid-column-shape tube body at the bottom portion is a concentration area, while the tube cover has the function of tight seal. After the tube is filled with liquid substance, and through actions of centrifugal force, the material in the liquid substance can be centrifuged into small volume trapezoid-column-shape tube body at the bottom of the tube body. Due to the design of trapezoid-column-shape tube body at the bottom of the tube body, the concentration ratio of the concentrated quantification centrifugal tube can be varied from 1 to infinite.
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