The utility model relates to a cutter milling depth adjustable mills face machine, the rollgang and the milling machine that include the frame, set gradually in the frame construct, milling machine constructs including drive assembly, mills the subassembly and at least one adjust the subassembly with the drive assembly drive is connected. The locking degree of the retaining member through the adjust subassembly makes the elastic component take place the bullet to become and produce the effort and act on the actuating rod through application of force pole, driven by the actuating rod from this rotatory promotion encircles rotatoryly and drives the adjustment of the rotation of milling cutter group, the milling depth of realization milling cutter group. The event the utility model discloses milling cutter's milling depth can have been controlled effectively to reduce the adjustment degree of difficulty of milling cutter's milling depth, improved adjustment efficiency, also reduced the waste material that mills the production simultaneously, further improved the roundness on the casting blank face of cylinder.