Folding portable radio apparatus

To be able to ensure a high antenna performance in call state. A metal frame 1A of the attached electrically conductive upper housing 1 and the first hinge portion 31 and electrically connected to, coupled to rotatable first and second hinge portions 31 and 32 by a rotation shaft 33 as well as, first and second hinge portions 31 and 32 and the rotary shaft 33 is formed of a conductive metal, electrically conductive at the point of contact between each. Moreover, to connect the second hinge portion 32 is feeding unit to the matching circuit 22 on the circuit board 21, so that one end of the conductive metal elements 35 having a predetermined length in the second hinge portion 32 electrically conducted opening the other end as well as connect to. Further, a conductive metal elements 35 arranged in parallel in the Y direction perpendicular to the lower housing 2 in the longitudinal direction (Z-direction), and arranged on the surface near the side opposite to the surface on which the operation keys are arranged.