The present invention relates to a syringe-integrated platelet extraction mechanism and a platelet extraction method using the same, wherein a space for receiving blood collected therein is formed in a longitudinal direction, an upper portion is opened, and an orifice to which an injection needle is coupled is formed at the lower portion. A housing, a cap coupled to the orifice of the housing, a collector press-fitted into the housing from an upper portion of the housing, a connector detachably coupled to an upper portion of the collector, and a plunger detachably coupled to the connector. Including, wherein the collector includes a body portion disposed to be movable inside the housing, a coupling portion formed on the upper portion of the body portion, and detachably coupled to a lower end of the connector, and the body portion on the bottom surface of the body portion A cup portion that is formed inwardly and has a volume corresponding to the amount of platelets to be extracted, a support portion extending to the lower portion of the coupling portion, and into which a syringe for extracting plasma and platelets is inserted, and a diameter smaller than the diameter of the support portion It provides a syringe-integrated platelet extraction mechanism, characterized in that it comprises a communication hole communicating the cup portion and the support portion. According to the present invention, it is manufactured in the form of a blood collection syringe, so that blood collection, centrifugation, and platelet extraction are performed in a single device, so that the structure is simple, the manufacturing cost is low, and contamination of blood due to air exposure can be prevented. In addition, there is an effect of extracting high-purity platelets by preventing the occurrence of vortex during platelet extraction.본 발명은 주사기 일체형 혈소판 추출기구 및 이를 이용한 혈소판 추출방법에 관한 것으로서, 내부에 채취된 혈액을 수용하는 공간이 길이방향으로 형성되고, 상부가 개방되며, 하부에 주사바늘이 결합되는 오리피스가 형성되는 하우징과, 상기 하우징의 오리피스에 결합되는 캡과, 상기 하우