; Guo Zhi-Yu
; Fang Jia-Xun
; Lu Yuan-Rong
; Yan Xue-Qing] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
; [Fu Shi-Nian] CAS, Inst High Energy Phys, Beijing 100049, Peoples R China
Development activities of Radio Frequency Quadrupole (RFQ) accelerators in China are presented. A 1 MeV O(+) RFQ and a 3.5 MeV ADS proton RFQ have been constructed. A novel separated function RFQ is under beam test, a 2 MeV D(+) RFQ is under construction and a CSNS RFQ is going to be constructed. The RFQ dynamics and the simultaneous dual beam acceleration with positive and negative ions were investigated and related codes were developed. The applications of RFQ will be further promoted in China.