In this study, the bending performances of GFRP (glass fiber reinforced plastic) composite panels produced by the hot press method were investigated. For this purpose, composite plates prepared with glass fiber and resin were pressed under a certain temperature and pressure and turned into panels. The panels produced were subjected to bending test since they are materials that operate under variable loads. Three-point bending test was applied by taking samples of 14x150x6 mm3 size from the panels. Finite element analysis (FEA) was performed to verify the experiment and to visually examine the stress distribution. At the end of the study, experimental and theoretical results were compared, and the effects of applied loads were discussed. The highest bending stress was 150.39 MPa in the experiments, and 164.31 MPa in the SE analysis. The displacement of the material before damage is 4.92 mm and 5.46 mm for the test and FEA, respectively. It was observed that the results of the experiment and FEA gave close results. The results obtained will support the studies of determining the size and mechanical properties of GFRP composite materials before their use in different areas.