A dual-mode fluid connector includes: a hollow connecting element, comprising a chamber inside the hollow connecting element, wherein a protuberant block element is arranged on an inner surface of the chamber; a material tube, positioned on the hollow connecting element and connected through the chamber; a head portion, positioned on one terminal of the hollow connecting element and having a connecting opening, wherein the connecting opening can be detachably connected to a material container; a rear portion, positioned on another terminal of the hollow connecting element and having a through hole; and a rod, inserted into the chamber via the through hole; and a rotatable element, covered on the rear portion and engaged with the rod and comprising a guiding element.