A combined PVC gardening profile includes a main profile. The main profile includes a main-profile base board a main-profile outer bottom frame is disposed on a left side of the main-profile base board a main-profile invisible groove is disposed in the main-profile outer bottom frame a main-profile invisible trench is disposed on a bottom surface of the main-profile invisible groove a main-profile strengthening rib is disposed on a right side surface of the main-profile outer bottom frame a main-profile cambered plate is connected to a top right corner of the main-profile outer bottom frame a main-profile fluorescent lamp groove is disposed on the main-profile cambered plate a main-profile inner side board is disposed at a lower end of a right end edge of the main-profile cambered plate and several main-profile fastening pin holes are provided at a right edge of the main-profile base board.
