The invention relates to the technical field of 
aerospace equipment, in particular to a 
continuous rotation detonation rocket engine manufactured by additive design and manufacturing. The 
continuous rotation detonation rocket engine comprises an inner cylinder 2 of a 
rocket engine, a 
fuel injection unit 4, an oxidant annular cavity 5 and an oxidant gas collection chamber 10, wherein the 
fuel injection unit 4, the oxidant annular cavity 5 and the oxidant gas collection chamber 10 are connected with the inner cylinder 2 of the 
rocket engine; the inner cylinder 2, the 
fuel injection unit 4, the oxidant annular cavity 5 and the oxidant gas collection chamber 10 are integrated into an integral piece by additive 
manufacturing technology; and the space between a 
rocket engine casing 1 and the integral piece is a 
combustion chamber 7, and the 
rocket engine casing 1 and the integral piece are connected through positioning pins 9. The invention further relates to an additive manufacturing methodfor manufacturing the 
continuous rotation detonation rocket engine. The continuous rotation detonation rocket engine is integrally manufactured through the additive 
manufacturing technology, supportand connection structures between various components are reduced, 
machining is facilitated, and weight reduction and the reduction of the cost and difficulty of 
machining and maintenance are facilitated.