Riprap concrete technology is the effective measures to control the temperature cracks in construction of mass concrete. But in the implementation process, there are some problems. In this paper, riprap concrete technology problems of the actual implementation are proposed, and the optimal solution is given. At last, relation to Dinghan gardens project raft foundation of mass concrete works, the material mix proportion is described in the paper. At the same time, construction technologies are outlined including pouring by segmentation and layer, riprap technology, bleeding treatment and concrete maintenance. The construction strength is tested by comparison test of normal maintenance. The results present that it not only solve construction problems of mass concrete in summer, but also shorten construction period and decrease construction cost.