Daišan was born in the Manchu Aisin Gioro clan as the second son of Nurhaci, the founder of the Qing dynasty.

During Nurhaci's campaign against the Ula clan and its beile Bujantai in 1607, Daišan distinguished himself on the battlefield by assisting Šurhaci and Cuyen.

Starting in 1621 Daišan and the other three senior beiles served as assistants to Nurhaci on a monthly rotational basis in directing state affairs of the Later Jin dynasty.

After the death of Nurhaci at the Battle of Ningyuan in 1626, Daišan was able to use his influence to make the princes and generals come to an agreement on Hong Taiji's accession as khan.

At first, Daišan named Hong Taiji's eldest son Hooge as the heir, but the latter declined the offer to succeed his father.

Yet even after the entire Qing court had swore an oath of allegiance to the throne, and there was a conspiracy by some nobles to let Dorgon replace Fulin.

According to historical records, it seemed that Daišan never attempted to seize power for himself, and instead worked for the benefits of the Aisin Gioro clan.

At the time of his death, special posthumous honours were not awarded to him, except that the sum of 10,000 taels instead of the usual 5,000 was given to his family for his funeral and a memorial tablet was erected.