Abstract: In order to study the fatigue performance of arc cutout in steel bridge deck, segmental finite element model of bridge deck in steel box girder was established based on a three-span cable-stayed bridge. The whole welding process simulation was performed for diaphragm-to-rib weld joint, residual stress distribution was analyzed for different arc cutout types. Based on the extended finite element method（XFEM）, solid sub-model of arc cutout detail was established, and the fatigue performance of arc cutout in steel bridge deck was studied based on the fatigue crack propagation. Results showed that the residual stress around the arc cutout zone was great, and the peak values were above 200 MPa. Under the coupled actions of fatigue load and the residual stress, the arc cutout details were in the tensile state. Fatigue cracks of the arc cutout details propagated to the diaphragm interior in the direction of the initial fatigue crack, and the deflection was occurred to the different extend. The fatigue performance of the arc cutout recommended by European Code was obviously better than others, and the fatigue performance of Haibach cutout was relatively worse. Residual stress influence should be fully considered in the design of steel bridge deck, and arc cutout with better fatigue performance should be selected.