An inspecting and repairing method of an additive manufacturing technology for inspecting and repairing a workpiece formed by the additive manufacturing technology, characterized in that the inspecting and repairing method comprises: a powder spreading step of spreading powders on a powder platform by a powder spreading mechanism; a fusing step of fusing the powders spread on the powder platform by a laser unit; a fusion inspecting step of capturing a post-fusion image of the powder platform by a camera after the fusing step, and transmitting the post-fusion image to a controller to inspect the post-fusion image, wherein the fusion inspecting step comprises: a raised area inspecting sub-step (S205a) of inspecting a raised area of the post-fusion image, and calculating a position and a size of the raised area, wherein a brightness of the raised area is greater than 110% of an average brightness of a layered contour area of the post-fusion image; and a depressed area inspecting sub-step (S205b) of inspecting a depressed area of the post-fusion image, and calculating a position and a size of the depressed area, wherein a brightness of the depressed area is less than 90% of an average brightness of a layered contour area of the post-fusion image; and a fusion repairing step of determining whether a processing mechanism needs to be driven to repair a surface of the workpiece according to an inspection result of the post-fusion image by the controller, wherein the processing mechanism includes cutting tools and a laser cladding device, the cutting tools and the laser cladding device are alternatively assembled on a multi-axis parallel connection machine. a powder spreading step of spreading powders on a powder platform by a powder spreading mechanism; a fusing step of fusing the powders spread on the powder platform by a laser unit; a fusion inspecting step of capturing a post-fusion image of the powder platform by a camera after the fusing step, and transmitting the post-fusion image to a controller to inspect the post-fusion image, wherein the fusion inspecting step comprises: a raised area inspecting sub-step (S205a) of inspecting a raised area of the post-fusion image, and calculating a position and a size of the raised area, wherein a brightness of the raised area is greater than 110% of an average brightness of a layered contour area of the post-fusion image; and a depressed area inspecting sub-step (S205b) of inspecting a depressed area of the post-fusion image, and calculating a position and a size of the depressed area, wherein a brightness of the depressed area is less than 90% of an average brightness of a layered contour area of the post-fusion image; and a raised area inspecting sub-step (S205a) of inspecting a raised area of the post-fusion image, and calculating a position and a size of the raised area, wherein a brightness of the raised area is greater than 110% of an average brightness of a layered contour area of the post-fusion image; and a depressed area inspecting sub-step (S205b) of inspecting a depressed area of the post-fusion image, and calculating a position and a size of the depressed area, wherein a brightness of the depressed area is less than 90% of an average brightness of a layered contour area of the post-fusion image; and a fusion repairing step of determining whether a processing mechanism needs to be driven to repair a surface of the workpiece according to an inspection result of the post-fusion image by the controller, wherein the processing mechanism includes cutting tools and a laser cladding device, the cutting tools and the laser cladding device are alternatively assembled on a multi-axis parallel connection machine.