<p>The present invention relates to a submerged-entry nozzle centring device. The present invention comprises: a plurality of laser beam generators (20) arranged in such a way as to irradiate laser beams towards the centre of a continuous-casting mould (3) from the upper part of the mould (3); a tundish-conveying mechanism (15) for conveying a tundish (1) over the mould (3); and a control means which is connected to the laser beam generator (20), and which controls the operation of the tundish-conveying mechanism (15) in such a way as to centre the positioning of a submerged-entry nozzle (5) provided on the lower part of the tundish (1) by means of a signal received from the laser beam generator (20). The present invention can not only centre the submerged-entry nozzle (5) in a way which is both accurate and fast, but it can also maintain the submerged-entry nozzle (5) constantly fixed at the centre and can thus minimise the phenomenon of drifting of the molten steel. Consequently, it has the advantage that it can be expected to improve the quality of the slab.</p>
