Captain FC van Wyk said three men forced open the back door of the farmhouse at about 03:00.
"They demanded money and other valuable items from the 30-year-old victim and his 26-year-old fiancée," Van Wyk said.
"The intruders overpowered and assaulted the couple with an axe and a steel pipe. The 30-year-old man suffered multiple injuries to his back, chest, arms, and legs."
The men ransacked the house and fled with wine and a DVD hi-fi system.
The woman pressed a panic button and a security vehicle and the police arrived shortly after.
"When the police arrived they found both victims badly assaulted in the main bedroom, covered in blood," Van Wyk said.
The couple was taken to a nearby hospital for treatment.
The man was later transferred to the Paarl Medi-Clinic for further treatment due to the seriousness of his injuries.
The police are investigating cases of attempted murder and house robbery.