A saddle riding type vehicle having an automatic brake device, the automatic brake device comprising: a front brake and a rear brake capable of being actuated independently of each other; and a brake modulator configured to control actuation of the front and rear brakes (2, 3); the brake modulator including collision possibility determining means configured to determine a possibility of collision of the own vehicle with a front obstacle, automatic brake control means configured to perform automatic brake control that automatically increases braking forces of the front and rear brakes (2, 3) when the collision possibility determining means determines that there is a possibility of collision, brake operation determining means configured to determine presence or absence of brake operation by a driver of the own vehicle; and limit braking necessity determining means configured to determine whether to maintain a ratio between operations of the front and rear brakes (2, 3) by the driver or to make the front and rear brakes (2, 3) reach a limit braking state without maintaining the ratio between the operations, characterized in that the limit braking necessity determining means is configured to determine whether to increase the braking forces of the front and rear brakes (2, 3) while maintaining a ratio between operations of the front and rear brakes (2, 3) by the driver or to make the front and rear brakes (2, 3) reach a limit braking state without maintaining the ratio between the operations, when the collision possibility determining means determines that there is a possibility of collision, and the brake operation determining means determines that the brake operation by the driver is present, the automatic brake control means changes a manner of increasing the braking forces of the front and rear brakes (2, 3) according to the brake operation by the driver, either by maintaining a ratio between operations of the front and rear brakes (2, 3) by the driver when there is a margin for the braking of the own vehicle, or performing limit braking immediately regardless of the ratio between the operations when there is no margin for the braking of the own vehicle. a front brake and a rear brake capable of being actuated independently of each other; and a brake modulator configured to control actuation of the front and rear brakes (2, 3); the brake modulator including collision possibility determining means configured to determine a possibility of collision of the own vehicle with a front obstacle, automatic brake control means configured to perform automatic brake control that automatically increases braking forces of the front and rear brakes (2, 3) when the collision possibility determining means determines that there is a possibility of collision, brake operation determining means configured to determine presence or absence of brake operation by a driver of the own vehicle; and limit braking necessity determining means configured to determine whether to maintain a ratio between operations of the front and rear brakes (2, 3) by the driver or to make the front and rear brakes (2, 3) reach a limit braking state without maintaining the ratio between the operations, collision possibility determining means configured to determine a possibility of collision of the own vehicle with a front obstacle, automatic brake control means configured to perform automatic brake control that automatically increases braking forces of the front and rear brakes (2, 3) when the collision possibility determining means determines that there is a possibility of collision, brake operation determining means configured to determine presence or absence of brake operation by a driver of the own vehicle; and limit braking necessity determining means configured to determine whether to maintain a ratio between operations of the front and rear brakes (2, 3) by the driver or to make the front and rear brakes (2, 3) reach a limit braking state without maintaining the ratio between the operations, characterized in that the limit braking necessity determining means is configured to determine whether to increase the braking forces of the front and rear brakes (2, 3) while maintaining a ratio between operations of the front and rear brakes (2, 3) by the driver or to make the front and rear brakes (2, 3) reach a limit braking state without maintaining the ratio between the operations, when the collision possibility determining means determines that there is a possibility of collision, and the brake operation determining means determines that the brake operation by the driver is present, the automatic brake control means changes a manner of increasing the braking forces of the front and rear brakes (2, 3) according to the brake operation by the driver, either by maintaining a ratio between operations of the front and rear brakes (2, 3) by the driver when there is a margin for the braking of the own vehicle, or performing limit braking immediately regardless of the ratio between the operations when there is no margin for the braking of the own vehicle.