A vehicle height adjustment device includes a spring having one end supported on a vehicle body side and another end supported on a wheel side. An adjustor includes an accommodation chamber accommodating fluid and adjusts a length of the spring in accordance with an amount of fluid in the accommodation chamber. A storage chamber stores fluid. A guide passage guides fluid from the accommodation chamber to the storage chamber. An actuator includes an operation rod to press a push rod. A valve body closes the guide passage when seated on a seat and opens the guide passage when pressed and detached from the seat by the push rod. A press member includes a contact portion and a shaft. The press member presses and seats the valve body on the seat. An accommodation member accommodates the valve body and the contact portion. A support member supports the shaft movably.