A suspension type sliding bracket having anti-dropping mechanism, the sliding bracket uses a first sliding rail of suspension type to slide on a first bracket, and the sliding bracket uses a second sliding rail of suspension type to slide on a second bracket, a front-end portion of the first sliding rail can provided with a first locating plate, a front-end portion of the first bracket can provided with a first locating post; wherein the first locating post can enter a first slot of the first locating plate, and the first locating post can block a closure portion of the first slot, therefore the first sliding rail can form a first anti-dropping position to stop slide; and the first slot can escape from the first locating post when an extension portion of the first locating plate is pressed.