Abstract: A resin-made multilayer molding includes two or more resin layers, at least one resin layer is configured from a mixed resin (B) containing, at a ratio (C)/(D)=99/1 to 10/90 by weight, a polyamide resin (C) obtained by polymerizing a diamine component containing 70 mol % or more of m-xylylenediamine and a dicarboxylic acid component containing 70 mol % or more of adipic acid, and a polyester resin (D) containing a dicarboxylic acid unit and a diol unit, 1-80 mol % of the diol unit having a cyclic acetal skeleton; and at least one resin layer in contact with a layer configured from the mixed resin (B) is configured from a resin containing 70 wt % or more of a thermoplastic polyester resin (A) obtained by polymerizing a dicarboxylic acid component containing 80 mol % or more of terephthalic acid and a diol component containing 80 mol % or more of ethylene glycol.