A spinning reel includes a reel body, a crank mounted to the reel body, a main shaft, a tubular worm, a rotor, a spool unit, a rotary shaft, a slider block, a cam mechanism, and a guiding unit. The cam mechanism is disposed between the rotary shaft and the slider block to provide a camming action for translating rotation of the rotary shaft into linear reciprocating motion of the slider block relative to the rotary shaft. A guiding sleeve of the guiding unit is disposed between the rotary shaft and the slider block to guide and stabilize the linear reciprocating motion of the slider block.
