Abstract: The invention provides an automated batch sample preparation method for button battery, comprising the following steps: preparing an electrolyte and elements of different specifications, presetting an injection amount of a liquid injection component, scanning and recording the identification information of the elements by a scanning component, grabbing the elements onto a sealing component, injecting the electrolyte into the elements on the sealing component, sealing the elements as a button battery by the sealing component, removing the button battery, then repeat the above steps. The automated batch sample preparation method for button battery provided by the invention has the advantages of high automation degree, simple operation, high-precision assembly and high efficiency. The injection amount can be adjusted and controlled, and button batteries with different specifications can be produced in batch. The information recorded by the scanning component can facilitate the optimization of the process.