The invention relates to a multifunctional tensioner, and belongs to the field of daily necessaries. The multifunctional tensioner comprises a platform, supporting legs, a waist training mechanism, aleg training mechanism and a leg training mechanism, the supporting legs is mounted on the bottom surface of the platform, the waist training mechanism is mounted on the upper surface of the platformand comprises a horn-shaped waist training panel, the waist training panel is divided into a vertical surface and an arc surface, one end of the vertical surface is perpendicular to the platform, oneend of the arc surface is connected with the vertical surface, the other end of the arc surface extends outwards, the leg training mechanism comprises a supporting plate, a second rotating shaft and aleg supporting plate, one end of the leg supporting plate is hinged to the supporting plate through the second rotating shaft, the multifunctional tensioner is provided with the waist training mechanism, the leg training mechanism and a foot training mechanism, toughness of the waist, the legs and the ankle of a user are stretched and trained, and the body toughness of the user is improved.