The utility model provides a micropipettor for detection, which relates to the field of micropipettors, and comprises a main body, and a suction head is mounted at the lower end of the main body; a clamping and fixing mechanism is installed on the upper portion of the left side of the body, and a perpendicularity measuring mechanism is arranged on the lower portion of the front end face of the body. Through the arrangement of the perpendicularity measuring mechanism, when liquid to be detected is sucked, the indicating arrow is always in a vertical state, and then the perpendicularity of the micropipettor is quickly measured through the indicating arrow and the angle measuring scale, so that the perpendicularity deviation between the micropipettor and the liquid level can be quickly and intuitively judged; the phenomenon of inaccurate judgment is avoided, and the accuracy of the pipetting amount is remarkably improved; the problems that when a traditional micropipettor sucks liquid, due to the fact that an effective perpendicularity measuring structure is lacked on the micropipettor, an experimenter judges whether the liquid suction angle is perpendicular or not only depending on personal experience and vision, judgment is inaccurate, and the liquid relief error is increased are solved.