A sliding electronic apparatus that prevents foreign matter from entering a housing is provided. In the apparatus, upper housing 1 and lower housing 2 are slidably coupled, and it is switched by sliding one of upper housing 1 and lower housing 2 with respect to the other, a closed state in which operation section 2b provided on lower housing 2 is covered by upper housing 1 and an open state in which operation section 2b is exposed. The apparatus includes opening 1c formed in a lower surface of upper housing 1, opening 2c formed in an upper surface of lower housing 2, and FPC 3 for electrically connecting wiring board 9 and wiring board 10. FPC 3 includes cover portion 3a mounted on the lower surface of upper housing 1 so as to cover opening 1c and cover portion 3b mounted on the upper surface of lower housing 2 so as to cover opening 2c. Cover portion 3a is electrically connected to wiring board 9 in upper housing 1, and cover portion 3b is electrically connected to wiring board 10 in lower housing 2.