Abstract: In a brake pedal apparatus (50) of the invention, an engagement condition between an engagement means (15) and an L-shaped member (43) is maintained and a second lever member (2a2) pivots with a second pivot shaft (13) being the center, setting a small lever ratio, if a pedal force (Fp) is equal to or less than a set value (Fp0) when a brake pedal (2) is depressed while the engaging means (15) and the L-shaped member (43) are in the engagement condition. If the pedal force (Fp) exceeds the set value (Fp0), the engagement between the engaging means (15) and the L-shaped member (43) is cancelled, and the engaging means (15) moves while causing the L-shaped member (43) to pivot. An engaging-and-connecting lever (45) disengages from a linear portion (43b), and the engaging-and-connecting lever (45) pivots so that its latch pawl latches onto teeth (47a) of the second lever member (2a2), joining the first and second lever members (2a1), (2a2) unitarily.