The utility model relates to a continuous casting technology field specially relates to an accent awl device of crystallizer. The utility model discloses a crystallizer leptoprosopy transfers awl mechanism to include the displacement adjusting mechanisms and the angular adjustment mechanism of two pairs of symmetries, displacement adjusting mechanisms includes the wide pneumatic cylinder of narrow limit accent, displacement sensor, displacement proportional servo valve, angular adjustment mechanism includes angle sensor, narrow limit angle modulation degree pneumatic cylinder, angle proportional servo valve, angle sensor sets up and transfers between wide pneumatic cylinder and the narrow limit backplate on narrow limit, narrow limit angle modulation degree pneumatic cylinder is certain angle with narrow limit backplate, narrow limit angle modulation degree pneumatic cylinder rear side is connected with angle proportional servo valve. The utility model discloses the tapering and the position of crystallizer are controlled respectively, can be comparatively quick control narrow limit copper, it all is through sensor direct measurement to adopt narrow limit to transfer the position and the leptoprosopy tapering of wide pneumatic cylinder, can improve the control accuracy of system, reduces the degree of difficulty that the system control system relates to.