The invention relates to a ball throwing type full-bore fracturing sliding sleeve. The ball throwing type full-bore fracturing sliding sleeve comprises an upper connector, an outer shell, an inner sleeve, a differential ring base, a differential ring, a ball base, a spring, a supporting ring, a lower connector, an upper shear pin, a middle shear pin and a lower shear pin. The two ends of the outer shell are connected with the upper connector and the lower connector through threads correspondingly, and an annular groove A is formed in the inner surface of the outer shell. The inner sleeve is fixed into the outer shell through the upper shear pin. The differential ring base is connected with the lower end of the inner sleeve through a thread. The differential ring is connected with the differential ring base through the middle shear pin. The supporting ring is arranged in the outer shell, and the lower end of the supporting ring is connected with the lower connector through the lower shear pin. The spring is arranged at the outer portion of the supporting ring in a sleeving manner, and the lower end of the spring makes contact with the lower connector. The ball base is arranged at the upper end of the supporting ring. The tool is used after fracturing construction is finished, the shaft drift diameter can be large, oil and gas production, later well logging, well repairing, capacity increasing innovating measures and other underground work are facilitated, the cost of a lower inner pipe drilling and grinding ball base is saved, and meanwhile the fracturing operation efficiency is improved.