The invention discloses a body liquid detection device which comprises a box body, a body liquid injection cavity, a reagent injection cavity, a detection region, body liquid injection buttons and reagent injection buttons, wherein the body liquid injection cavity and the reagent injection cavity are connected with the detection region; the body liquid injection buttons and the reagent injection buttons are pressed down according to indicating signals so as to control body liquid in the body liquid injection cavity and a reagent in the reagent injection cavity to flow into the detection region to be mixed for detection. According to the body liquid detection device, the body liquid to be detected is injected into the body liquid injection cavity; the body liquid and the reagent stored in the reagent injection cavity are controlled to flow into the detection region for analytic detection by pressing down the body liquid injection buttons and the reagent injection buttons; a patient can execute detection independently, and the detection is convenient; furthermore, the body liquid detection device is simple in structure, small in size and low in cost; the detection expense of the patient is low, and the body liquid detection device is convenient for popularization and use.