In order to study the characteristics of the temperature-control of anchor-plug mass concrete and further obtain the temperature-controlling strategy, taking the south anchorage concrete-plug mass concrete of Tai Hong Yangtze River Bridge as engineering background, numerical simulation was conducted by the finite element software Midas/FEA, and the field measurement was also carried out. The temperature field inside concrete and tunnel during the construction process of 1st-4th layers anchorage concrete-plug. The results show that the temperature inside concrete from field monitoring basically agrees with that from simulation. Internal temperature is suggested to be 0.7-0.9 times of atmospheric temperature in relatively closed environment of tunnel anchorage concrete-plug. When the pouring thickness of anchorage concrete is changed to 2 m from 4 m, the peak temperature inside concrete decreases by 1.8 ℃ and the peak stress decreases by 1.06 MPa. When the surface convection coefficient of concrete decreases 10 kJ/m2 ?h?℃, the peak temperature increases by 1.0 ℃, the peak stress decreases by 0.35 MPa. When the molding temperature of each layer increases by 5.0 ℃, the peak temperature increases by 3.0 ℃, the peak stress increases by 0.40 MPa. When the medium or low heat cement is used, the peak temperature respectively decreases by 4.6 ℃ or 14.9 ℃, and the peak stress decreases by 0.40 MPa or 1.51 MPa compared to normal cement. The research results are applied to the temperature control of the anchor-plug mass concrete in later construction, which obtains good effect.