A method of inspecting a synthetic silica glass molded body includes: irradiating the synthetic silica glass molded body with a spectrum line of an Hg lamp having a wavelength of 248 nm; measuring light emitted by the synthetic silica glass molded body; and a procedure which may include screening a portion which satisfies a condition that a ratio of the bright line intensity and the fluorescent light intensity is of a certain value or less, or which may include determining whether a condition that a ratio of a minimum value and a maximum value of a measured fluorescent light intensity is in a certain range is satisfied or not.