provided is a composite sheet for food containers which comprises an aroma proof resin layer comprising a saturated polyester resin , a polycarbonate resin and a copolymer comprising three components of bisphenol a , diphenyl carbonate and 1 , 10 - decanedicarboxylic acid or a mixture of at least two of these three resins , a polyamide resin layer , a water vapor barrier resin layer , a gas barrier resin layer and a thermoplastic support resin layer , these layers being laminated in succession in order of a - b - c - d - e . this composite sheet for food container has remarkable aroma proof and low - temperature impact resistance with having the performances of synthetic resin containers having gas barrier properties and capable of being subjected to high - temperature sterilization .