A spine correction and pelvis strengthening apparatus is provided. The spine correction and pelvis strengthening apparatus includes: a fixed securing means which includes: a first knee splaying prevention plate downwardly bent from one side of the fixed securing means and shaped like a hand a first horizontal plate extending from the first knees splaying prevention plate and having a guide recess formed on a bottom surface of the first horizontal plate and a securing bracket formed at the other side of the fixed securing means and extending from the first horizontal plate, the first knees splaying prevention plate, the first horizontal plate, and the securing bracket being integrally formed with one another and a variable securing means which includes: a second knees splaying prevention plate downwardly bent from one side of the variable securing means and shaped like a hand a second horizontal plate extending from the second knees splaying prevention plate and a variable extension bar formed at the other side of the variable securing means, the second knees splaying prevention plate, the second horizontal plate, and the variable extension bar being integrally formed with one another.
