The invention relates to the technical field of cooking utensils, and in particular relates to a liquid-filling tray assembly and a cooking utensil. The liquid-filling tray assembly is arranged on a panel of the cooking utensil. An opening is formed in the panel for a burner in the cooking utensil to pass through. The liquid-filling tray assembly includes: a liquid-filling tray body provided witha liquid-filling groove, and a pressing member disposed between the periphery of the burner and the opening for pressing the panel on the cooking utensil body; wherein, the liquid-filling tray body isdetachably arranged on the pressing member, when the liquid-filling tray body is cleaned, the liquid-filling tray body only needs to be taken out from the pressing member, so that interference of a fixing screw, an ignition needle, an induction needle and the like on the cleaning work of the liquid-filling tray body is avoided. Simultaneously, the pressing member presses the panel to ensure stability of the panel. At the same time, the panel is pressed to seal a gap between the liquid-filling tray body and the panel, so as to prevent soup from penetrating into the interior of the cooking utensil from the gap to erode internal parts of the cooking utensil.