To improve the serviceability of a suckling bottle made of PES by enhancing the impact resistance value of the nursing bottle to obtain sufficient drop strength.

This bottomed, cylindrical, injection blow molded suckling bottle is made from polyether sulfone as its raw material and has a parison injection molded gate trace 6 formed in the center of the bottle bottom 5. The bottle bottom 5 is in the form of a raised bottom which curves upward in the form of a sphere, its raised height (h) being 9% to 20% inclusive of the bore R of a grounding part on the outer periphery of the raised bottom part (b), the grounding part being approximately circular on bottom view.