The invention discloses a replacement method for a pitching hinged point bearing of a reclaimer. The reclaimer comprises a gate post (1), a cantilever (2), a balance weight body (3) and a pull rod mechanism (4), wherein the tail of the cantilever is hinged to the gate post; the cantilever is connected to the pull rod mechanism; the balance weight body is connected to the pull rod mechanism and used for balancing the cantilever. The replacement method comprises the steps of firstly, respectively arranging a first support (5) and a second support (6) at the corresponding positions of the cantilever and the balance weight body, placing the cantilever on the first support, and then placing the balance weight body on the second support; secondly, disconnecting the cantilever from the pull rod mechanism; thirdly, detaching a pin shaft between the tail of the cantilever and the gate post; fourthly, replacing the bearing; fifthly, mounting the pin shaft, connecting the cantilever to the pull rod mechanism, and finally removing the first support and the second support. As the replacement method is adopted, the pitching hinged point bearing of the reclaimer can be safely and reliably replaced, and the occurrence of safety accidents is reduced.