The application discloses a fluid connector and a liquid cooling device, and relates to the technical field of liquid cooling devices, and the fluid connector comprises a connecting head, a
valve seat and a connecting piece. The connecting head is provided with an annular groove, the
valve seat is provided with a slot and a fixing hole, the slot extends along a first direction, the connecting head is inserted into the
valve seat along the first direction, the fixing hole extends along a second direction perpendicular to the first direction, the fixing hole is communicated with the slot, and the connecting piece is used for being matched with the fixing hole and the annular groove when the annular groove moves to the fixing hole, so that the connecting head and the valve seat are connected. The fluid connector improves the problems of difficult
assembly and high
scrap rate caused by the traditional rigid connecting piece connection.