A braking apparatus (10; 210; 310; 410; 610; 710; 810) that generates braking force by driving a motor (40, 42; 214; 336; 632; 839), comprising: a reservoir (24; 352, 354; 352, 370; 352, 380, 382; 352, 390; 452, 454; 840) for retaining operating fluid; a wheel cylinder (20RL, 20 RR, 20FL, 20FR) provided in each of a plurality of wheels; a brake pedal operated by a driver; an operating state detection means configured to detect an operating state of the brake pedal; a master cylinder (14; 314; 813; 914) including both a fluid pressure chamber (14a, 14b; 890, 892) into/from which the operating fluid can be introduced or discharged, and a piston (82, 84; 874, 878; 982, 984) configured to slide in the direction where the pressure of the operating fluid in the fluid pressure chamber (14a, 14b; 890, 892) is increased/reduced in accordance with a stepping-on operation of the brake pedal; a fluid pressure circuit (16; 316; 616; 716; 816) that is provided between the master cylinder (14; 314; 813; 914) and the wheel cylinder (20RL, 20RR, 20FL, 20FR), and that includes both a first system flow channel (C, D, I, J1, J2, J3, J4, H; H6; L8, M8) connecting the reservoir (24; 352, 354; 352, 370; 352, 380, 382; 352, 390; 452, 454; 840) and at least one of the plurality of wheel cylinders (20RL, 20RR, 20FL, 20FR) and a second system flow channel (A, B, F, G; L, K; J6; A8, B8, C8, D8, E8, F8, G8, H8) connecting at least one of the plurality of wheel cylinders (20RL, 20RR, 20FL, 20FR) and the master cylinder (14; 314; 813; 914), and that forms a flow channel for supplying the operating fluid to each of the wheel cylinders (20RL, 20RR, 20FL, 20FR); a pump (32, 34, 36, 38; 332, 334; 634; 838) provided in the first system flow channel (C, D, I, J1, J2, J3, J4, H; L8, M8) and driven by the motor (40, 42; 214; 336; 632; 839) to increase the fluid pressure of the operating fluid to be supplied from the reservoir (24; 352, 354; 352, 370; 352, 380, 382; 352, 390; 452, 454; 840) to the wheel cylinders (20RL, 20RR, 20FL, 20FR); and a control unit (200; 206; 207; 208; 209; 217) configured to control the driving state of the pump (32, 34, 36, 38; 332, 334; 634; 838) in order to drive, when a predetermined fail standard for braking control has been satisfied, the motor (40, 42; 214; 336; 632; 839) in accordance with the information detected by the operating state detection means, characterized in that the control unit (200; 206; 207; 208; 209; 217) is additionally configured to execute fail-safe control for providing braking force to a predetermined wheel of said plurality of wheels by supplying the operating fluid discharged from the pump (32, 34, 36, 38; 332, 334; 634; 838) to the fluid pressure chamber (14a, 14b; 890, 892) in the master cylinder (14; 314; 813; 914), such that it becomes possible to stop the vehicle stably. a reservoir (24; 352, 354; 352, 370; 352, 380, 382; 352, 390; 452, 454; 840) for retaining operating fluid; a wheel cylinder (20RL, 20 RR, 20FL, 20FR) provided in each of a plurality of wheels; a brake pedal operated by a driver; an operating state detection means configured to detect an operating state of the brake pedal; a master cylinder (14; 314; 813; 914) including both a fluid pressure chamber (14a, 14b; 890, 892) into/from which the operating fluid can be introduced or discharged, and a piston (82, 84; 874, 878; 982, 984) configured to slide in the direction where the pressure of the operating fluid in the fluid pressure chamber (14a, 14b; 890, 892) is increased/reduced in accordance with a stepping-on operation of the brake pedal; a fluid pressure circuit (16; 316; 616; 716; 816) that is provided between the master cylinder (14; 314; 813; 914) and the wheel cylinder (20RL, 20RR, 20FL, 20FR), and that includes both a first system flow channel (C, D, I, J1, J2, J3, J4, H; H6; L8, M8) connecting the reservoir (24; 352, 354; 352, 370; 352, 380, 382; 352, 390; 452, 454; 840) and at least one of the plurality of wheel cylinders (20RL, 20RR, 20FL, 20FR) and a second system flow channel (A, B, F, G; L, K; J6; A8, B8, C8, D8, E8, F8, G8, H8) connecting at least one of the plurality of wheel cylinders (20RL, 20RR, 20FL, 20FR) and the master cylinder (14; 314; 813; 914), and that forms a flow channel for supplying the operating fluid to each of the wheel cylinders (20RL, 20RR, 20FL, 20FR); a pump (32, 34, 36, 38; 332, 334; 634; 838) provided in the first system flow channel (C, D, I, J1, J2, J3, J4, H; L8, M8) and driven by the motor (40, 42; 214; 336; 632; 839) to increase the fluid pressure of the operating fluid to be supplied from the reservoir (24; 352, 354; 352, 370; 352, 380, 382; 352, 390; 452, 454; 840) to the wheel cylinders (20RL, 20RR, 20FL, 20FR); and a control unit (200; 206; 207; 208; 209; 217) configured to control the driving state of the pump (32, 34, 36, 38; 332, 334; 634; 838) in order to drive, when a predetermined fail standard for braking control has been satisfied, the motor (40, 42; 214; 336; 632; 839) in accordance with the information detected by the operating state detection means, characterized in that the control unit (200; 206; 207; 208; 209; 217) is additionally configured to execute fail-safe control for providing braking force to a predetermined wheel of said plurality of wheels by supplying the operating fluid discharged from the pump (32, 34, 36, 38; 332, 334; 634; 838) to the fluid pressure chamber (14a, 14b; 890, 892) in the master cylinder (14; 314; 813; 914), such that it becomes possible to stop the vehicle stably.