Provided is a synthetic resin container capable of effectively absorbing reduced pressure in the container due to cooling of contents, and capable of suppressing unauthorized deformation of the container to the radial outer side when filling the contents at a high temperature. A synthetic resin container 1 of the present disclosure is a synthetic resin container 1 including a mouth 2 that serves as a spout for a content, a trunk 4 that continues to the mouth 2 via a shoulder 3, and a bottom 5 that closes a lower end of the trunk 4, The pressure reduction absorption panel 11 has at least one pressure reduction absorption panel 11, and the pressure reduction absorption panel 11 has a central recess 12 having a tapered shape extending to a tip 12 b while contracting in the circumferential direction from a base end 12 a located on one of an upper...

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