To provide a reel apparatus preventing a cord-like body from being buried in a cord-like body wound around a reel even when a large traction force is generated, for example, when a heavy object is towed through the cord-like body such as a wire or tether.

The reel apparatus includes: a high torque rotation drive device; a first pulley which is rotatingly driven by the rotation drive device, and is configured to have a V-shaped groove, and can be strongly winched with the winched cord-like body buried in the V-shaped groove; and a second pulley which is rotatingly driven by the rotation drive device, and coils an end portion of the cord-like body. The first pulley strongly tows the cord-like body and winds it into the interior of the reel apparatus, and the cord-like body wound by the first pulley is winched and stored on the second pulley by a gentle torque.