Abstract: An apparatus for the continuous production of expanded plastic panels with inserts on their longitudinal edges, comprising a head for pouring a reactive mixture between a first and a second containment layers in order to obtain a foamed layer, a containment and advancement assembly for the layers being constituted by a lower slat conveyor and by an upper slat conveyor. The lower slat conveyor has lateral containment blocks at the ends of its slats. At least some of the blocks are provided thereon with the inserts to be incorporated in the foamed layer, for picking and placing the inserts on the engaging elements provided in the apparatus.