A high-repetition-rate eye-safe intracavity KTP optical parametric oscillator (KTP-OPO),pumped by an acousto-optically Q-switched Nd:YAG laser,is studied experimentally.The average output power and pulse width of the pump wavelength and the signal wavelength with respect to the repetition rate are analyzed at the same diode pump power. The average output power of 1.6 W and the pulse widh of 6~10 ns at the eye-safe wavelength are obtained with the repetition rate of 5~20 kHz,giving the optical-optical conversion efficiency of about 5.3% from diode power at 808 nm to OPO signal output, and the optical beam quality M2 factor is 5.