A partition which can fully prevent a luggage from moving is provided. A partition which divides the luggage room of a vehicle two dimensionally has a main partition member which divides the luggage room in one direction and sub partition members which divide the luggage room in another direction. The main partition member has connection parts detachably connected to respective anchors provided in the luggage room. The sub partition member has a connection part provided at one end thereof, and the other end thereof is coupled to the main partition member. The main partition member has the connection parts at both side ends thereof, and the sub partition members divide the luggage room in a direction orthogonal to the main partition member.