In order to study whether the high-water rapid-setting material (HRM) have the ability to control the Strata movement chronically and effectively. In this research, transient mechanical tests and microscopic scanning had been performed on HRM. HRM creep experiments in air environment and water environment were conducted through continuously gravitational loading way. At the same time, based on creep experiments, the rheological model and rheological parameters of HRM have been identified. The results of creep experiments and rheological identification showed that the strength of HRM will be reduced in air environment, and water environment is beneficial for its strength reinforcement. The creep behavior stability of RHM is determined by whether its loading level is above or below its yield stress. The creep law of HRM in water environment can be better simulated by the Burgers model.