The present invention relates to a probe pin for a probe card and, more specifically, to a probe pin with reduced flux diffusion, which prevents flux from diffusing along the probe pin when the probepin is attached to an electrode of a space transformer, and a manufacturing method thereof. To this end, the present invention comprises: a pin body part; a pin elastic part extending from the pin body part so as to have elasticity; and a pin contact part formed on the other side of the pin elastic part, wherein the pin body part further comprises a flux prevention part formed in a groove shape and preventing the flux from diffusing along the pin body part by storing flux therein.