The Daming Palace was the imperial palace complex of the Tang Dynasty, located in its capital Chang'an. It served as the royal residence of the Tang emperors for more than 220 years. Today, it is designated as a national heritage site of China. The area is located northeast of present-day Xi'an, Shaanxi Province.

The palace was originally known as Yong'an Palace, but was renamed to Daming Palace in 635. In 662, after renovations to the palace, it was renamed to Penglai Palace. In 670, it was named to Hanyuan Palace or Yuan Palace. Eventually, in 701, the name of the palace became Daming Palace again.

The former royal residence was the Taiji Palace (太极宫), built in the previous Sui dynasty.

In 632, chancellor Ma Zhou charged that the retired Emperor Gaozu was living in Da'an Palace (大安宮) to the west, which he considered an inhospitable place as it was built on low-lying lands of Chang'an that was plagued by dampness and heat during the summer. According to him, ever since Emperor Taizong moved to the countryside during the summers, his retired father was left behind in Chang'an to suffer in the summer heat. However, his father would always decline any invitation from Emperor Taizong to spend the summer together. Ever since the bloody palace coup of the Xuanwu Gate Incident in 626, it seemed that father and son had drifted apart to an extent that their relationship never healed.

In 634, Emperor Taizong launched the construction of the Daming Palace at Longshou Plateau. He ordered the construction of the summer palace for his retired father, Emperor Gaozu, as an act of filial piety. However, Emperor Gaozu grew ill and never withnessed the palace's completion before his death in 635, and construction halted thereafter.

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