Braking device and fishing reel comprising the same

A braking device of a fishing reel, comprising:

• a braked part made of a conductor, the braked part being attached to a spool configured to wind a fishing line;
• a braking part configured to generate braking force by providing a magnetic field for the braked part;
• a part being detected that is provided on the braked part;
• and
• a rotation detection sensor configured to detect rotation of the spool by detecting the part being detected, wherein
• the braking part comprises two cylindrical magnets opposite to each other in a radial direction of the braking part, and
• the rotation detection sensor is disposed between the two cylindrical magnets in the radial direction of the braking part.