The invention discloses a blood coagulation function detection chip which comprises a blood collection needle (2), a drug loading chamber and a reaction chamber (6), wherein the reaction chamber is internally provided with a magneto-elastic iron core (5); the drug loading chamber is internally provided with a drug loading core (4); the blood collection needle is communicated with the drug loading core when the blood collection needle bears pressure; the drug loading core is communicated with the reaction chamber; blood collected by the blood collection needle flows into the drug loading core and is mixed with a detection reagent in the drug loading core; and mixed liquid flows into the reaction chamber. According to the chip, the peripheral blood is collected quantitatively at one time and automatically mixed with the quantitative reagent; compared with the existing equipment, venous blood collection is not required; the reagent is not required to be added additionally; the chip is quick and convenient; and pain of a patient is reduced.