How long will Daxing Tianhe prison stay and move away?

According to relevant information: three months.

1. After three months in Daxing Tianhe Detention Center, he will be transferred to prison.

2. Prison Law Article 15 The people's court shall serve a notice of execution and a written judgment on a criminal sentenced to death with a two-year suspension of execution, life imprisonment or fixed-term imprisonment to the public security organ where the criminal is detained, and the public security organ shall send the criminal to prison for execution within three months from the date of receiving the notice of execution and the written judgment.