The lotus grab is mainly an automatic material grabbing device. Through fixed hinge seats, hydraulic cylinders, hydraulic grabs, hydraulic oil pipes, and a supporting hydraulic integrated control circuit, it relies on the hydraulic system of an excavator or other construction machinery to provide power. The opening and closing movements of the hydraulic grab bucket are controlled by the control handle, thus realizing operations such as grabbing, handling, and dumping of materials. When excavation work is required, the hydraulic grab can be retracted without affecting the excavation operation, which shows high flexibility and practicality.