On 26 November, the lower court banned Rodina from taking part in the 4 December elections because of a campaign advertisement that critics say is xenophobic.
The lawsuit to ban Rodina from the election was filed by another nationalist party, the Liberal Democratic Party of Russia, which accused Rodina of inciting ethnic hatred.
The Supreme Court is set to rule on Rodina's appeal before the poll on 4 December.
RFE/RL Russia Report
SUBSCRIBE For news and analysis on Russia by e-mail, subscribe to "RFE/RL Russia Report."