A locking mechanism for a foldable pole, the foldable pole comprising a pole body and an elastic drawstring disposed inside the pole body, the pole body being composed of a plurality of pole sections (11, 12, 13) foldably connected with each other through the locking mechanism, and each of the pole sections having two ends; the locking mechanism comprises: a connector; characterized in that the locking mechanism further comprises a connecting sleeve with a through hole for receiving the connector; an elastic buckle disposed on the connecting sleeve for locking the connector; and a locking sleeve limitedly and movably up and down disposed out of the connecting sleeve; the connecting sleeve is configured to be disposed on one end of two adjacent ends of two adjacent pole sections (11, 12, 13), and the connector is configured to be disposed on another end of the two adjacent ends of two adjacent pole sections (11, 12, 13); the connector has a clamping groove corresponding to the elastic buckle; one end of the elastic buckle passes through the connecting sleeve and is inserted into the clamping groove of the connector, so as to lock the connecting sleeve with the connector; the locking sleeve is capable of pressing against the elastic buckle, so as to lock or unlock the connecting sleeve with the connector; wherein the connecting sleeve has an upper portion and a lower portion; the upper portion of the connecting sleeve is connected with a cylindrical connecting section, an end of an upper pole section has an opening for receiving the cylindrical connecting section; the elastic buckle is a spring piece or an elastic piece with a substantially V-shaped or U-shaped cross section, and has a fixed end and an elastic locking end; the connecting sleeve has a mounting base protruding from a peripheral surface of the lower portion of the connecting sleeve for receiving the fixed end of the elastic buckle, and a slot is formed in the mounting base for the elastic locking end of the elastic buckle to pass therethrough and to resist against the clamping groove of the connector, so that elastic buckle is locked with the connector inside the connecting sleeve under pressure of the locking sleeve; and the clamping groove is annular and is formed on a peripheral surface of the connector. a connector; characterized in that the locking mechanism further comprises a connecting sleeve with a through hole for receiving the connector; an elastic buckle disposed on the connecting sleeve for locking the connector; and a locking sleeve limitedly and movably up and down disposed out of the connecting sleeve; the connecting sleeve is configured to be disposed on one end of two adjacent ends of two adjacent pole sections (11, 12, 13), and the connector is configured to be disposed on another end of the two adjacent ends of two adjacent pole sections (11, 12, 13); the connector has a clamping groove corresponding to the elastic buckle; one end of the elastic buckle passes through the connecting sleeve and is inserted into the clamping groove of the connector, so as to lock the connecting sleeve with the connector; the locking sleeve is capable of pressing against the elastic buckle, so as to lock or unlock the connecting sleeve with the connector; wherein the connecting sleeve has an upper portion and a lower portion; the upper portion of the connecting sleeve is connected with a cylindrical connecting section, an end of an upper pole section has an opening for receiving the cylindrical connecting section; the elastic buckle is a spring piece or an elastic piece with a substantially V-shaped or U-shaped cross section, and has a fixed end and an elastic locking end; the connecting sleeve has a mounting base protruding from a peripheral surface of the lower portion of the connecting sleeve for receiving the fixed end of the elastic buckle, and a slot is formed in the mounting base for the elastic locking end of the elastic buckle to pass therethrough and to resist against the clamping groove of the connector, so that elastic buckle is locked with the connector inside the connecting sleeve under pressure of the locking sleeve; and the clamping groove is annular and is formed on a peripheral surface of the connector.