The Shenzhou-14 crew has entered the Tianzhou-4 cargo craft after finishing the environmental tests, according to the China Manned Space Agency (CMSA) on Monday.
After successfully stationing in China's space station core module Tianhe, the Shenzhou-14 crew opened the hatch of the Tianzhou-4 cargo craft and entered it at 12:19 p.m. (Beijing Time), the CMSA said.
The crew will also enter the Tianzhou-3 cargo craft, and carry out cargo transfer and other related work as planned.
The Shenzhou-14 spaceship was launched from the Jiuquan Satellite Launch Center in northwest China on Sunday.
The crew entered the core module Tianhe after Shenzhou-14 successfully completed a fast automated rendezvous and docking with the combination of the core module, the Tianzhou-3 cargo craft and the Tianzhou-4 cargo craft.
They will stay in orbit for six months and complete the assembly and construction of the space station.