The judicial system of Ukraine is outlined in the 1996 Constitution of Ukraine. Before this there was no notion of judicial review nor any Supreme court since 1991's Ukrainian independence when it started being slowly restructured.

The Constitution of Ukraine is the fundamental law of Ukraine. The constitution was adopted and ratified at the 5th session of the Verkhovna Rada, the parliament of Ukraine, on 28 June 1996. The constitution was passed with 315 ayes out of 450 votes possible. All other laws and other normative legal acts of Ukraine must conform to the constitution. The right to amend the constitution through a special legislative procedure is vested exclusively in the parliament. The only body that may interpret the constitution and determine whether legislation conforms to it is the Constitutional Court of Ukraine. Since 1996, the public holiday Constitution Day is celebrated on 28 June.