Two armed men forced their way into a Springvale home and threatened the occupant with a knife.
Police said the burglars knocked on the Elm Grove front door about 1.50pm on Sunday 6 May.
When the 36-year-old victim answered the door they forced their way inside and threatened the man.
They stole cash and jewellery and left the scene in a dark-coloured Honda Civic hatch with stolen number plates.
Police said both men had a solid build and wore dark clothes, one had a Malaysian appearance and the other Middle Eastern.
Call Crime Stoppers on 1800 333 000 or Greater Dandenong CIU on 9767 7444 with any information.