The present invention provides a toilet assembly which includes a case and a toilet bowl. The toilet bowl extends from a bottom of the case and toward a direction away from the case, wherein the case is disposed with at least one partition. The partition divides an interior of the case into a first reservoir area and a urinal area. The first reservoir area is adapted to reserve water. At least one surface of the urinal area is formed with an opening, and the opening is adapted for a user to urinate. Thereby, the urinal area can be formed in one piece with and on one side of the toilet assembly. Consequently, it can save the use of water consuming when male users urinates, and it can save the space in the lavatory. Further, the male users can urinate in front of the urinal area without opening the seat lid.