Pipe explosion and leakage often occur in the heating surfaces of boiler in 1 000 MW unit. Taking the second phase project of Xinmi power plant in Henan as an example, the dependence of installation elevation error of the tower boiler on the installation quality of heating surface is analyzed. Based on the characteristics of boiler installation and the reasons resulting in elevation error, control measures of the installation elevation of the heating surface are proposed, which is proved well by practical application.