1. A gait tread simulation fitness equipment, comprising: a main body, having a support frame, and a central stand disposed at a front end of the support frame and having a first pivot and a second pivot; a plurality of suspending side frames respectively disposed at two sides of the main body and each suspending side frame disposed with a suspending pivot; and a plurality of guiding mechanisms respectively disposed at two sides of the central stand, each guiding mechanism comprising a swing rod, a tread rod, a triple-joint link and a suspending rod; the swing rod pivotally connected to one end of the first pivot, one end of the tread rod pivotally connected to the swing rod, the other end of the tread rod disposed with a pedal, a first joint of the triple-joint link connected to one end of the second pivot, a second joint of the triple-joint link connected to the tread rod, one end of the suspending rod pivotally connected to a third joint of the triple-joint link, and the other end of the suspending rod pivotally connected to the suspending pivot; wherein, when the tread rod is reciprocating, the triple-joint link is driven by the tread rod to go around the second pivot so as to facilitate the pedal actuating along a gait track.