Suspension apparatus for vehicles

A suspension apparatus can include a knuckle configured to be connected to a wheel, an active damper unit configured to connect the knuckle to a body, a first motor configured to apply rotational force to the active damper unit, a first reducer located between the active damper unit and the first motor configured to transmit the rotational force of the first motor to the active damper unit, and a height adjustment unit connected to the first reducer.