Many historical studies tend to underline two central Kantian themes frequently emerging in Georges Canguilhem’s works: (1) a conception of activity, primarily stemming from theCritique of Pure Reason, as a mental and abstract synthesis of judgment; and (2) a notion of organism, inspired by theCritique of Judgment, as an integral totality of parts. Canguilhem was particularly faithful to the first theme from the 1920s to the first half of the 1930s, whereas the second theme became important in the early 1940s. With this article, I will attempt to show that a third important theme oftechniquearose in the second half of the 30s also in the wake of Kant’s philosophy, especially Sect. 43 of theCritique of Judgment. This section, which states that technical ability is distinguished from a theoretical faculty, led Canguilhem to a more concrete and practical conception of activity. I will then suggest that it was by considering technique that the concept of normativity, which characterizes Georges Canguilhem’s philosophy of life, also took shape.