To provide a hydraulic damper for a vehicle capable of minimizing a reduction in a stroke amount by increasing the damping force characteristics of a piston speed in low and high speed ranges and suppressing an increase in the number of parts.

In this hydraulic damper 1 for the vehicle, an extension main valve 6 formed of an annular plate valve 6 and opening in an extension stroke and a compression main valve 7 opening in a compression stroke are disposed in compression chamber side openings 42a and 41b opening to the compression side oil chambers A of extension and compression side main passages 42 and 41 and extension chamber side openings 42b and 41a opening to the extension side oil chambers B. A second piston member 8 in which an auxiliary passage 8f allowing the compression side oil chambers A to communicate with the extension side oil chambers B is formed is disposed on a piston rod 3 adjacently to a piston 4, and an compression auxiliary valve 9 formed of an annular plate valve and opening the extension side oil chamber B side outlet of the auxiliary passage 8f at the beginning of the compression stroke is opened in the same direction as that of the compression main valve 7.