The object of the present invention is to provide a high quality polyester resin having high productivity, stability and safety, a catalyst for polyester production with high catalytic activity, a method for producing the polyester resin with the catalyst, a polyester resin obtained with the catalyst, and a hollow molded container comprising the polyester resin. The polyester resin of the present invention satisfies specific parameters regarding polymerizability, stability, and metal content. The catalyst for polyester production satisfies specific parameters. The catalyst particularly preferably comprises: (a) a solid titanium-containing compound which has a maximum solubility in ethylene glycol of 1,000 ppm or more in terms of converted titanium amount when dissolved in ethylene glycol with heating at 150° C., and which comprises titanium, oxygen, carbon, and hydrogen, and optionally alkali metal, and has a Ti—O—C bond; and (b) an alkali metal compound, the molar ratio of the alkali metal atoms to the titanium atom in the catalyst being in the range of 20/1 to 0.1/1.