To provide an electromagnetic wave shielding material of frequency selective transmission type, which transmits electromagnetic waves of a predetermined frequency selectively and shields electromagnetic waves of other frequencies, and is improved in transparency and productivity, and also to provide its production process.

The electromagnetic wave shielding material 1 of frequency selective transmission type is provided, at least on one side of a transparent base 2, with a metal mesh pattern 3 having a slit 5 for transmitting electromagnetic waves of a predetermined frequency, wherein a metallization layer of the metal mesh pattern 3 is composed by forming a developed silver layer on the transparent base 2 by a photography process.