Abstract: A variable speed training apparatus of a continuous horizontal mechanism is disclosed, in which a lower body can be exercised by pedaling along a circular trace while overcoming the problems found in the conventional art, and an exercise effect can be doubled by using many leg muscles. The variable speed training apparatus of a continuous horizontal mechanism comprises a body frame; first and second rotation casings which are opposed to each other and are installed in both sides of the body frame 1 at slanted angles, and are equipped with pedals; and a driving force transfer means which rotatably connects the first and second rotation casings.