High molecular weight aromatic polycarbonate resin manufacturing method

Provided is a high molecular weight aromatic polycarbonate resin manufacturing method that can achieve good quality and sufficiently high molecular weight. A high molecular weight aromatic polycarbonate resin manufacturing method including: a step in which a dialcohol compound expressed by general formula (1) and a catalyst are mixed to obtain a catalyst composition; a step in which the obtained catalyst composition is transferred to a prepolymer mixing tank via a transfer pipe; a step in which the transferred catalyst composition and an aromatic polycarbonate prepolymer are mixed in the prepolymer mixing tank, under a pressure that is greater than or equal to the vapor pressure of the dialcohol compound at the temperature of the prepolymer mixing tank and is less than or equal to 5MPa, to obtain a prepolymer mixture; and a high molecular weight achievement step in which the obtained prepolymer mixture is heat-treated under reduced pressure conditions to obtain a high molecular weight aromatic polycarbonate resin. In formula (1), R1-R4 each independently represent a hydrogen atom, a halogen atom, or a C1-5 straight-chain or branched-chain alkyl group. Q represents a single bond or a divalent radical that may have a substituent group and is formed from at least one component selected from the group consisting of an aliphatic group, an aromatic group, an oxygen atom, a sulfur atom, a sulfone group, a sulfoxide group, a carbonyl group, a dialkylsilyl group, and a diarylsilyl group.