The water and soil erosion in Three Gorges Reservoir area fluctuation zone has caused significant changes in the river regime in some sections，affecting the safety of ship navigation.Wave erosion is one of the main causes of soil erosion on the bank slopes of the reservoir area.To further explore effective protection technologies for the bank slope of the reservoir area’s fluctuation zone，a flume test is conducted to study the wave erosion resistance of a new ecological slope protection structure，the terra block mat.The degree of soil erosion is calculated through needle measurement and wave pressure is measured by pressure sensors in this test.The results indicate that compared to the unprotected bare soil，the relative erosion of the protective section of the terra block mat under different working conditions is only 19.71% to 35.89%.Moreover，under the action of waves with a wave height of 4 cm and a period of 1.37 s，the terra block mat has varying degrees of weakening effect on the waves，with the most obvious weakening effect at a slope of 25°，and the wave pressure decreases by 20.46%.The terra block mat has good resistance to wave erosion and can be used for further research in the practical engineering.