Abstract: In order to solve the problem of hydration heat of mass concrete, combined with a Yellow River Bridge project, the cooling pipe is pre-embedded inside its No.44 supporting platform and the finite element software midas Civil were used for the numerical analysis of hydration heat. The results indicate that pre-embedded cooling pipes can effectively reduce the hydration heat produced by the mass concrete during and after the pouring process, compared with the temperature field results of the model without cooling pipe, it is found that the cooling effect of the water pipe makes the maximum temperature difference between inside and outside of the model decrease by 17.18℃, which has a significant cooling effect; meanwhile, the value of temperature stress in concrete at all ages is less than its corresponding allowable tensile strength, which effectively inhibits the generation of temperature cracks and improves the crack resistance of mass concrete.