A connector with a filter function includes a first substrate having a first surface and a second surface opposite to each other; a plurality of first terminal lines formed on the first surface of the first substrate, wherein each of the first terminal lines is further arranged periodically and repeatedly with a predetermined periodic unit pattern; a case connected to one side end of the first substrate; a second substrate having a first surface and a second surface opposite to each other and disposed in the case; and a plurality of second terminal lines having a periodic unit pattern, formed on the first surface of the second substrate, and electrically connected to the first terminal lines on the first substrate.