A telescopic baton, comprising: a plurality of tubes sequentially arranged in an embedded manner, wherein an innermost tube of two adjacent tubes in the plurality of tubes is capable of extending and withdrawing along an axis direction of an outermost tube of the two adjacent tubes, and a locking groove is formed in an inner wall of a first end of the outermost tube of the two adjacent tubes; a blade cam locking assembly comprising a socket sleeve, a plurality of blade cam blocks, a plurality of torsional springs and a fixing mechanism, wherein the plurality of blade cam blocks correspond to the plurality of torsional springs respectively; the socket sleeve is fixedly coupled to a first end of the innermost tube; the plurality of blade cam blocks are provided on the socket sleeve in a same circumferential direction; both extended ends of the torsional springs are respectively abutted against the socket sleeve and the plurality of blade cam blocks so as to enable the plurality of blade cam blocks to extend in a direction far away from a central axis of the socket sleeve, when the first end of the innermost tube extends to the first end of the outermost tube, the plurality of blade cam blocks are automatically clamped inside the locking groove under an action of the torsional springs; and an unlocking structure, wherein the unlocking structure is movably mounted inside the outermost tube of the plurality of tubes, and the unlocking structure is used, under the action of an external force, for driving the plurality of blade cam blocks to withdraw in a direction close to the central axis of the socket sleeve so as to unlock the blade cam locking assembly; wherein the fixing mechanism comprises: a positioning plate, wherein the plurality of blade cam blocks is disposed between the positioning plate and the socket sleeve; and a plurality of screw shafts, oriented parallel to said axis direction, wherein each of the plurality of screw shafts penetrates through the positioning plate and a corresponding blade cam block in the plurality of blade cam blocks and is coupled to the socket sleeve; wherein each of the plurality of blade cam blocks rotates around the corresponding screw shaft in the plurality of screw shafts as to move between an extended state and a retracted state. a plurality of tubes sequentially arranged in an embedded manner, wherein an innermost tube of two adjacent tubes in the plurality of tubes is capable of extending and withdrawing along an axis direction of an outermost tube of the two adjacent tubes, and a locking groove is formed in an inner wall of a first end of the outermost tube of the two adjacent tubes; a blade cam locking assembly comprising a socket sleeve, a plurality of blade cam blocks, a plurality of torsional springs and a fixing mechanism, wherein the plurality of blade cam blocks correspond to the plurality of torsional springs respectively; the socket sleeve is fixedly coupled to a first end of the innermost tube; the plurality of blade cam blocks are provided on the socket sleeve in a same circumferential direction; both extended ends of the torsional springs are respectively abutted against the socket sleeve and the plurality of blade cam blocks so as to enable the plurality of blade cam blocks to extend in a direction far away from a central axis of the socket sleeve, when the first end of the innermost tube extends to the first end of the outermost tube, the plurality of blade cam blocks are automatically clamped inside the locking groove under an action of the torsional springs; and an unlocking structure, wherein the unlocking structure is movably mounted inside the outermost tube of the plurality of tubes, and the unlocking structure is used, under the action of an external force, for driving the plurality of blade cam blocks to withdraw in a direction close to the central axis of the socket sleeve so as to unlock the blade cam locking assembly; wherein the fixing mechanism comprises: a positioning plate, wherein the plurality of blade cam blocks is disposed between the positioning plate and the socket sleeve; and a plurality of screw shafts, oriented parallel to said axis direction, wherein each of the plurality of screw shafts penetrates through the positioning plate and a corresponding blade cam block in the plurality of blade cam blocks and is coupled to the socket sleeve; wherein each of the plurality of blade cam blocks rotates around the corresponding screw shaft in the plurality of screw shafts as to move between an extended state and a retracted state. a positioning plate, wherein the plurality of blade cam blocks is disposed between the positioning plate and the socket sleeve; and a plurality of screw shafts, oriented parallel to said axis direction, wherein each of the plurality of screw shafts penetrates through the positioning plate and a corresponding blade cam block in the plurality of blade cam blocks and is coupled to the socket sleeve; wherein each of the plurality of blade cam blocks rotates around the corresponding screw shaft in the plurality of screw shafts as to move between an extended state and a retracted state.