Abstract: In order to study the nonlinear optical properties of C60 derivative,a new bridged C60 derivative was prepared through the interaction between 5-(2-methylthio-4-methyl-5-pyrimidinyl)-2,4-pentadiyne-1-olsorbate and C60.The molecular structure was identified and characterized by MALDI-TOF-MS,IR,UV-vis,1H NMR,DEPT and 13C NMR spectra.The optical nonlinear properties were investigated by z-scan technique and optical limiting experiment with Q-switched,double frequency ns/ps Nd:YAG laser pulse.The experimental results show that the values of third-order optical nonlinear susceptibilities (3) and nonlinear absorption coefficient .The lower value of optical limiting clamp of C60 derivative were also found.It has a good optical limiting performance.