Solid fluidization cutter suction mining technology is one of the solutions to the bottleneck of gas hydrate production in the surface of the seabed. The cutter suction head is the core component of the cutter suction mining

and the single tooth parameter is the key to determine the breaking performance of the cutter suction head. Using the substitute sample and the singletooth linear simulation cutting device

the experimental research on the influence of the singletooth structure parameters and process parameters of the cutter head on the single-tooth load and the particle size of the broken particles was carried out. The results indicate that the load of a single tooth increases binomially with the increase of the cutting width

and decreases with the increase of the front edge angle. The particle size of the broken particles increases with the increase of the single tooth width

and decreases with the increase of the front edge angle. The crushing effect of the front edge angle of 60° is the best. The distribution of the side inclination to the single tooth load and the broken particle size is affected by the brittle collapse of the groove wall.