A "hip training apparatus" comprises a chassis and a pair of pivotable treadles. At breech of deck cover on said chassis, one ramp is formed at each left and right side descending from central line outwards laterally such that one curved trough with curved track therein is configured at each ramp. Said pivotable treadle, whose front end of back side is set in the chassis, has a roller disposed at rear end of back side thereof. At front rim of chassis, a carrying handle is built on deck cover with an aperture and two lateral slits are configured thereon for having an elastic strap passed inside so that user can arbitrarily perform stretch and twist physical exercise with entire body in balance manner. Meanwhile, by adjusting wing nut acting on the elastic belt, the torsional tension of two pivotable treadles is arbitrarily altered.