The invention discloses a guide rod type filling support which comprises a base, a top beam and a plurality of vertically-arranged hydraulic stand columns installed between the base and the top beam, a guide device capable of sliding up and down is further vertically arranged on the base, the upper end of the guide device is hinged to the top beam, and a filling baffle capable of stretching up and down is further arranged behind the base. The lower portion of the filling baffle is connected with the rear end of the base through a connecting rod. A rear overturning beam is further hinged to the rear end of the top beam, a rear overturning jack hinged to the top beam and the rear overturning beam is further arranged between the top beam and the rear overturning beam, and when the rear overturning jack is controlled to stretch out and draw back, the rear overturning beam rotates up and down relative to the top beam. The filling baffle at the rear part of the filling bracket can stretch up and down, so that the filler is isolated from the working surface of the filling bracket; the multiple guiding devices jointly serve as a stabilizing mechanism, the formed structure is more compact, the length of the top beam is shorter, the supporting strength is high, the size is small, and underground transportation is more convenient.