The present invention relates to a reversible baby stroller with a brake structure. More particularly, the present invention includes a handlebar having an actuated member. The flexible wire is connected between said actuated member and either the front or the rear of the brake mechanism. The said actuated member, therefore, can control the brake mechanism. When the user requires changing the position of the handlebar, the actuated member moves along the handlebar. Further, whether the handlebar is in the front or in the rear, the user uses the said actuated member through the flexible wire to operate the brake mechanism for achieving convenience.