Abstract: The Accelerator Driven subcritical System (ADS) has a unique advantage in transmutation. It has important practical significance to conduct experiments on transmutation and burnup measurement of actinide nuclides in an ADS device. By performing burn-up calculation on the CiADS core, the composition of various nuclides in the fuel pellets is obtained. A comprehensive analysis of the half-life, gamma photon emission rate and energy of these nuclides has been conducted, revealing that the Cs-137 is the most appropriate burn-up indicator nuclide in CiADS transmutation experiments.