A wiper apparatus comprising: a brushless motor which supplies a current to coils (U1, U2, V1, V2, W1, W2) and rotates a rotor; a wiper arm which receives power from the rotor of the brushless motor, and which is moved so as to wipe off a window glass of a vehicle; and a control unit which switches and selectively executes: first energization control to start energization to the coils at first timing, and to continue the energization for a first period to control the rotation number of the rotor; and second energization control to start energization to the coils at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor, characterized in that the second timing is advanced with respect to the first timing by an electric angle equal to or more than 30 degrees, and equal to or less than 60 degrees, the first period is set to an electric angle of 120 degrees, the second period is set, on the basis of the electric angle by which the second timing is advanced with respect to the first timing, within a range equal to or more than an electric angle of 135 degrees, and equal to or less than an electric angle of 165 degrees, a torque ripple rate when the second energization control is executed is reduced more than a torque ripple rate when the first energization control is executed, and the control unit has: a mode switching unit which switches and selects one of a low-speed mode to move the wiper arm at a speed determined in advance, and a high-speed mode to move the wiper arm at a speed faster than the low-speed mode and selects one of the low-speed and high-speed modes; and a plurality of sensors (41, 42, 43) for detecting rotation phases of the rotor, wherein, in accordance with conditions based on the low-speed or high-speed mode selected by the mode switching unit and an actuation load of the wiper arm estimated from output signals of the sensors, the first energization control whose current waveform is made a rectangular wave is executed, or the second energization control whose current waveform is smoother than the rectangular wave is executed, and radiated sound generated around the brushless motor is reduced. a brushless motor which supplies a current to coils (U1, U2, V1, V2, W1, W2) and rotates a rotor; a wiper arm which receives power from the rotor of the brushless motor, and which is moved so as to wipe off a window glass of a vehicle; and a control unit which switches and selectively executes: first energization control to start energization to the coils at first timing, and to continue the energization for a first period to control the rotation number of the rotor; and second energization control to start energization to the coils at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor, characterized in that first energization control to start energization to the coils at first timing, and to continue the energization for a first period to control the rotation number of the rotor; and second energization control to start energization to the coils at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor, characterized in that the second timing is advanced with respect to the first timing by an electric angle equal to or more than 30 degrees, and equal to or less than 60 degrees, the first period is set to an electric angle of 120 degrees, the second period is set, on the basis of the electric angle by which the second timing is advanced with respect to the first timing, within a range equal to or more than an electric angle of 135 degrees, and equal to or less than an electric angle of 165 degrees, a torque ripple rate when the second energization control is executed is reduced more than a torque ripple rate when the first energization control is executed, and the control unit has: a mode switching unit which switches and selects one of a low-speed mode to move the wiper arm at a speed determined in advance, and a high-speed mode to move the wiper arm at a speed faster than the low-speed mode and selects one of the low-speed and high-speed modes; and a plurality of sensors (41, 42, 43) for detecting rotation phases of the rotor, a mode switching unit which switches and selects one of a low-speed mode to move the wiper arm at a speed determined in advance, and a high-speed mode to move the wiper arm at a speed faster than the low-speed mode and selects one of the low-speed and high-speed modes; and a plurality of sensors (41, 42, 43) for detecting rotation phases of the rotor, wherein, in accordance with conditions based on the low-speed or high-speed mode selected by the mode switching unit and an actuation load of the wiper arm estimated from output signals of the sensors, the first energization control whose current waveform is made a rectangular wave is executed, or the second energization control whose current waveform is smoother than the rectangular wave is executed, and radiated sound generated around the brushless motor is reduced.