The invention provides an in-orbit spacecraft surface abnormity status intelligent detection system comprising a two-dimensional imaging sensing device, a three-dimensional imaging sensing device, anintelligent lighting device and a laser range finding machine; the two-dimensional imaging sensing device and the three-dimensional imaging sensing device are respectively arranged on an end performerof a space robot; the intelligent lighting device comprises a lighting light source, a multi-freedom motion mechanism and a data processing unit; the lighting light source can emit lights of different colors according to needs, and is arranged on the multi-freedom motion mechanism; the multi-freedom motion mechanism is arranged on the end performer of the space robot; the data processing unit comprises a digital signal processing circuit; the laser range finding machine is used for controlling the distance of the end performer of the space robot and an observed object. The method and system are complete in function designs, thus satisfying related application demands of spaceflight in-orbit services, effectively improving environment adaptability of each data processing algorithm, and providing a higher intelligent level.