Automatic table-top machine (10) for kneading and extruding pasta, comprising a machine body (11), which includes electric gear motor means (12) having an output shaft (12.1) with horizontal axis, transmission means (13) from said output shaft (12.1) to a driven shaft (14) with axis horizontal and parallel to the axis of said output shaft (12.1) and coaxial to a shaft (15) of a kneading reel (15.1), projecting externally to said machine body (11) in a dough forming tank (16), having below and parallel to said shaft (15) of the kneading reel (15.1) an extrusion channel (17), in which there is arranged a worm screw (18) coaxial with respect to said output shaft (12.1), which feeds in the manner of an auger extrusion means (19) for forming pasta, wherein said machine body (11) comprises: - a load-bearing frame (20), including a sheet metal plate bent substantially to 90° and which provides, in a single body, a horizontal base (21), fixed with respect to supporting means (22) on said table, and a vertical wall (23), on the outer face of which said dough forming tank (16) is fixed, and - an inner reinforcement (A) comprising: - first plate support means (24), including a first vertical plate (24.1), which is fixed with respect to said horizontal base (21), parallel to and spaced from said vertical wall (23), - second plate support means (25), including a second vertical plate (25.1), which is fixed to the inner face of said vertical wall (23), and - bearing means (26, 27) for supporting and sustaining said output shaft (12.1) and said driven shaft (14), supported with respect to said first plate (24) and to said second plate (25).