A biaxial hinge device includes an approximately rod-shaped first shaft member; an approximately rod-shaped second shaft member; a shaft connecting member for connecting the first shaft member and the second shaft member such that the direction in which the first shaft member extends and the direction in which the second shaft member extends are approximately orthogonal; an arm portion provided to the first shaft member so as to be turnable along the outer circumference of the first shaft member, a hinge fixing portion provided to the second shaft member so as to be turnable along the outer circumference of the second shaft member, and a thrust cam member provided to the first shaft member such that movement in the direction in which the first shaft member extends is enabled.