Three-direction interlocking ecological slope protection brick and application thereof

The invention relates to a three-direction interlocking ecological slope protection brick and the application thereof. The slope protection brick comprises a brick body. Three brick arms which extend outwards are arranged on the brick body. The included angle between every two adjacent brick arms is 120 degrees. A connecting body is arranged at the tail end of each brick arm. An engagement part is formed between every two adjacent connecting bodies and the corresponding brick arm, and meanwhile the slope protection brick is also provided with a vegetation hole and a benchmarking groove. Compared with the prior art, by the adoption of the three-direction interlocking ecological slope protection brick and the application thereof, three-direction engagement is achieved, and omnibearing interlocking is achieved; the integrity of interlocking slope protection is remarkably improved, and the adaptability of interlocking slope protection to the fluctuation of the slope surface is remarkably improved, and both the sl