There is provided a bottle having a handle formed by stretch blow molding comprising an improved structure and facilitates carrying even a relatively large bottle in which a bendable handle having a flat shape extending in a transverse direction is integrally formed below a threaded portion of a neck of the bottle on the bottle, and a connecting portion of said handle includes a narrow portion which is transversally provided by reducing the thickness at an intermediate portion of the connecting portion, whereby making the finger engaging tab bendable at the narrow portion in upper and lower directions, and molecular orientation of the resin material is performed by the narrow portion