This invention refers to an automatic machine for strawberry processing to de-calyx and remove the leaves and cut in pieces; it is used in the agro-alimentary industry, in processing industry and in canning industry; and it could be suitable also for processing of other products similar to strawberry. The machine is composed of a conveyor belt (1) at closed loop design, where one or more operators feed manually in vertical with the leaves and the calyx up in the holes (5) of each fruit-holder element (3) of the conveyor belt which moves continuously to bring the fruits, so placed, to the processing station composed of a frame where a header plate (14) reciprocates in horizontal and vertical, controlled and adjusted by sensors which lead the three processing operations done by the machine: strawberries alignment, de-calyxing and fruit ejection. In particular, the de-calyxing takes place through two cutting units (30) side by side composed of six rotating spindles (31) each one equipped with a rotating cutting head composed of two blades (32), optimized in their conformation and size, and wherein the opened tips penetrate to a adjusted depth, on the strawberry, around the calyx, and then close, during the penetration and the cutting, so to eliminate precisely the calyx with a minimum of straw berry fruit.