Anti-flying blade, manufacturing method of anti-flying blade, aero-engine and aircraft

The invention discloses an anti-flying blade and a manufacturing method thereof, an aero-engine and an aircraft, the anti-flying blade comprises a sweepforward gravity center stacking section, a trailing edge stacking section and a transition section, the sweepforward gravity center stacking section is stacked along a sweepforward gravity center stacking line, and the trailing edge stacking section is stacked along a trailing edge stacking line; the transition section is located between the sweepforward gravity center stacking section and the trailing edge stacking section, and the transition section is formed through smooth transition of the sweepforward gravity center stacking section and the trailing edge stacking section. According to the flying-rotation-preventing blade, the modeling sections are compositely stacked in a'sweepforward gravity center + trailing edge 'composite stacking mode, a three-dimensional blade is formed, the flying-rotation-preventing blade is stacked in two directions, the upper ha