Partially end-pumped hybrid resonator slab laser is one kind of novel solid-state laser. High repetition rate Q-switched operation using this structure was achieved. An output pulse train with 4.6 ns pulse width and 4.5 mJ pulse energy was obtained at 1 kHz repetition rate. In the condition of continuous pumping with 5 kHz operation, Q-switched laser with pulse width of 6 ns and pulse energy of 3.1 mJ was obtained, and output power was more than 15W. The width and energy were 9.5 ns and 1.2 mJ respectively when the repetition rate reached 25 kHz, and output power was 30 W. Experimental results show that the output level has great potential for further development.