The output characteristics of a novel solid-state laser with Er∶YAG ceramic laser as the pump source and Tm∶CYA as the laser crystal is studied.Efficient lasing of resonantly pumped Tm∶CYA solid-state laser is demonstrated.Output characteristics under 4.0 at.% and 6.0 at.% Tm3+-doping concentrations and different transmittances of output coupler are experimentally studied.The 4.0 at.% Tm3+-doping c-cut Tm∶CYA single crystal is as gain medium.When the transmittance of an output coupler is 5%,the maximum output power in a diffraction-limited TEM00 beam(with M2 of about 1.1) is 1.20 W at pump power of 2.46 W,and the corresponding slope efficiency is 56.3%.