"The Empress of the Palace" tells the story of Jiang Yue, the daughter of a criminal minister. In order to find out the unjust case of her father and brother, she entered the game with chess and became an abandoned concubine in the cold palace. She used her wisdom to survive in the court strife. From a humble palace maid to a powerful imperial concubine, she and the suspicious emperor Zhou Jingheng went from testing each other to supporting each other in life and death. The two worked together to pacify Northern Xinjiang, implement the New Deal, and create a prosperous age of Yongchang. However, there is no peace in the deep palace. The empress dowager makes things difficult, political enemies frame her, and foreign countries covet her. Jiang Yue relies on her resourcefulness and perseverance to protect her loved ones and the great Zhou Dynasty in the whirlpool of power and emotion. In the end, she grows from an abandoned concubine to a generation of virtuous empress, guarding the country side by side with the emperor forever, and composing a legend of the deep palace.