The utility model relates to a water outlet system, which comprises a water delivery piece and a water outlet device installed on one of the water delivery pieces.The water outlet device comprises a nozzle, a water seal washer, a pressing piece, a water head and a water outlet pipe fitting.The connecting pipe is provided with a stop part and a threaded pipe part, and the stop part is provided with a protruding part, which is used to extend and open the opening of the water conveyance part, so that the stop part is installed in the water conveyance part, so as to improve the convenience of assembly.The fastener is screwed on the threaded pipe part to tighten the water seal washer tightly against the water conveyance part.The outlet head screw is arranged on the fastener to connect the connecting pipe by the fastener.一種出水系統，包含：一輸水件及安裝於該輸水件之一出水裝置。該出水裝置包含一銜接管、一止水墊圈、一迫緊件、一出水頭及一出水管件。該銜接管上有一擋部及一螺紋管部，該擋部上有一突出部，用以伸入且撐開該輸水件之開口，使該擋部裝入該輸水件內，以增進組裝的便利性。該迫緊件螺設於該螺紋管部，以迫緊該止水墊圈緊貼該輸水件。該出水頭螺設於該迫緊件，以藉由該迫緊件連接該銜接管。
