The utility model relates to a thickened oil horizontal well completing tool, in particular to a recyclable device of a thickened oil horizontal well screen pipe. The upper end of a release pipe column of the recyclable device of the thickened oil horizontal well screen pipe is connected with a square drill rod, the lower end of the release pipe column is connected at the top end of a recycling hanging device, the lower end of the recyclable hanging device is connected with a well flushing pipe column, a screen pipe string is sleeved outside the well flushing pipe column, the upper end of the screen pipe string is connected with the recyclable hanging device, the lower end of the screen pipe string is connected with a flexible recycling guiding shoe, and the lower end of the well flushing pipe column is directly inserted into the flexible recycling guiding shoe. The recyclable device of the thickened oil horizontal well screen pipe is capable of achieving the fact that recycle can be built between the screen pipe string and a well barrel, can remove drilling fluid detained between the screen pipe string and a storage layer, can fully flush a well bottom, and can effectively process temporary plugging films or mud cakes formed on a well wall of the storage layer during well drilling. The defects that the recycle can not be built between an existing screen pipe string and an existing well barrel and blocking and pollution caused close to a well hole can not be effectively processed are solved.