Abstract: Test and numerical simulations were adopted to study buckling properties of 2D textile composite curved panels. In order to study the influence of curvature radius, length and arc length on buckling properties of 2D textile composite curved panels, four groups of specimens with different curvature radius, length and arc length have been designed to conduct buckling test. Comparing the buckling load and buckling mode of four different groups of curved panels, the influences of different geometric parameters on buckling properties have been acquired. The buckling load rises by 26.85% as the curvature radius decreases 25%, which exert the most important influence. As with the 26.32% increase of arc length, the buckling load per area keeps equal generally and buckling load increases 23.783%. The buckling load increases by 24.41%, while the length decreases by 42.25%. As to buckling mode, length affects most, arc length ranks second, and curvature radius follows. A standard test referring to ASTM was designed to acquire material stiffness coefficient. As the arc sides of curved plates were quite constrained as a result of fixing and friction in aerocraft structure and test, buckling finite element analysis under two types of boundary conditions, with and without constraints were conducted. Through the comparison of test and finite element result, simulated load under two boundary conditions can determine the scope of the test buckling load.