A two-axis hinge device with rotation regulating function comprising: a folding axis member for rotatably supporting one case; a rotational axis member for rotatably supporting another case; a base frame setting the folding axis of the folding axis member and the rotational axis of the rotational axis member to intersect each other, and rotatably supporting the folding axis member and the rotational axis member, respectively; a rotational operation range restricting head portion arranged on an end of the folding axis member, the rotational operation range restricting head portion having a disc shape that is formed concentrically with the axis of the folding axis member; a rotation allowing portion formed by recessing an outer circumferential side surface of the rotational operation range restricting head portion into a predetermined shape; a rotational operation range restricting deformed head portion arranged on an end of the rotational axis member so as to face the rotational operation range restricting head portion; and a restricting structure portion formed at the rotational operation range restricting deformed head portion so as to restrain rotation of the folding axis member by abutting the outer circumferential side surface of the rotation allowing portion of the rotational operation range restricting head portion on an end surface, and so as to restrain rotation of the rotational axis member when the outer circumferential side surface abuts on the end surface of the rotational operation range restricting head portion, wherein a rotation stopper is attached to the base frame so as to abut on the restricting structure portion of the rotational operation range restricting deformed head portion to restrict a rotation range of the rotational axis member. a folding axis member for rotatably supporting one case; a rotational axis member for rotatably supporting another case; a base frame setting the folding axis of the folding axis member and the rotational axis of the rotational axis member to intersect each other, and rotatably supporting the folding axis member and the rotational axis member, respectively; a rotational operation range restricting head portion arranged on an end of the folding axis member, the rotational operation range restricting head portion having a disc shape that is formed concentrically with the axis of the folding axis member; a rotation allowing portion formed by recessing an outer circumferential side surface of the rotational operation range restricting head portion into a predetermined shape; a rotational operation range restricting deformed head portion arranged on an end of the rotational axis member so as to face the rotational operation range restricting head portion; and a restricting structure portion formed at the rotational operation range restricting deformed head portion so as to restrain rotation of the folding axis member by abutting the outer circumferential side surface of the rotation allowing portion of the rotational operation range restricting head portion on an end surface, and so as to restrain rotation of the rotational axis member when the outer circumferential side surface abuts on the end surface of the rotational operation range restricting head portion, wherein a rotation stopper is attached to the base frame so as to abut on the restricting structure portion of the rotational operation range restricting deformed head portion to restrict a rotation range of the rotational axis member.