A flexible display apparatus includes a flexible display panel and a flexible printed circuit board (FPCB). The flexible display panel includes a display body and a peripheral circuit. The peripheral circuit is adjacent to the display body, and the FPCB is connected to the peripheral circuit. The FPCB includes a first portion and a second portion, wherein the first portion is connected between the peripheral circuit and the second portion. Bending modulus of the first portion is lower than that of the second portion. The flexible display apparatus has better reliability. Another flexible display apparatus is also provided.