The invention relates to a fruit pitting device, in particular to an apple pitting machine. The apple pitting machine comprises a bottom plate, a supporting frame, a handle and a penetrating head fixed to one end of the handle. The handle is sleeved with an adjusting sleeve which is in thread fit with the handle, and a top sleeve is arranged at the portion, located between the adjusting sleeve and the penetrating head, on the handle in a sleeving mode, and is in sliding fit with the handle; at least one elastic metal sheet is arranged between the top sleeve and the penetrating head, one ends of the elastic metal sheets are fixedly connected with the end, close to the penetrating head, of the handle, and the other ends of the elastic metal sheets are bent outwards to form bending parts; knife edges are formed in the edges of the bending parts; the bottom plate is located below the handle, the supporting frame is vertically and fixedly arranged on one side of the bottom plate, and the end, away from the penetrating head, of the handle horizontally penetrates through the supporting frame and is rotationally matched with the supporting frame. The apple pitting machine has the advantages of being simple in structure, convenient to operate and capable of rapidly removing apple cores.