Provided are a device and a method for infusing a liquid without inserting a needle in a food. The present device is provided with: a liquid-jetting mechanism comprising a liquid-holding member for holding a liquid therein, a liquid-accelerating member for accelerating the liquid inside the liquid-holding member, and a nozzle provided at a position that faces a food so that the liquid accelerated by the liquid-accelerating member is jetted toward the food； a driving mechanism for moving the liquid-accelerating member； and a control means capable of controlling the driving mechanism so as to freely change the movement speed in the process of moving the liquid-accelerating member from a movement starting position to a movement completion position.本發明提供一種無須將針插入食品便可注入液體的裝置及方法。本裝置係具備：液體噴射機構、和驅動機構、及控制手段，該液體噴射機構含有：將液體保持於內部的液體保持構件；和對液體保持構件內之液體賦予速度的液體加速構件；及設置在面對食品的位置，使藉由該液體加速構件賦予速度後的液體朝向食品噴射的噴嘴，該驅動機構是用以移動液體加速構件，該控制手段可控制驅動機構，使液體加速構件從移動開始位置至移動結束位置為止之移動行程的移動速度自由變化。
