The invention provides an intelligent temperature control grouting system for a concrete dam joint. The intelligent temperature control grouting system is applied to arch dam transverse joints, gravity dam longitudinal joints with grouting requirements and the like. The system comprises a measuring and control subsystem and a server. The measuring and control subsystem comprises a master control chip, a first wireless transmission module, a temperature sensor arranged in concrete, and a joint measuring meter arranged at the end of the joint. The data output end of the temperature sensor and the data output end of the joint measuring meter are connected with the data input end of the master control chip. The control signal output end of the master control chip is connected with the control end of an automatic grouting device and a switching part on a cold water pipeline. The server comprises a processor, a second wireless transmission module and a data processing module. A data collecting module predicts the grouting time according to the concrete temperature and the joint opening data which are sensed by the temperature sensor and the joint measuring meter in real time and a concrete temperature-time gradient change graph and sends control instructions of concrete cooling and grouting to the measuring and control subsystem. The grouting quality of the concrete dam joint can be effectively improved through the intelligent temperature control grouting system.