Abstract: It introduced the present development condition and prospect of Water Source Heat Pumps (WSHP), and the main research direction at home and abroad. Aim at the lack of studying on WSHP, a set of combine instrument to imitate WSHP was established and relevant simulation experiment was carried out. The experiment principle, test-bed composition, experimental sample preparation process, experimental steps and the various experimental equipment design parameters were introduced. The experimental results were analyzed and simulated. Through controlling different temperature and different recharging water volume, we found the following heat transfer characteristics: Increasing water recharging volume is less than the impact of increasing water recharging temperature on the surrounding sand temperature. The thermal diffusion of recharging water down is stronger than upward. Through controlling recharging water volume and temperature, the affected areas of sand temperature in the horizontal and vertical direction was drawn on, Which provided reference data for the development of water-source heat pump technology. Two -dimensional temperature field was simulated and contrasted with water recharge experiment data. According to results of the experiment, the conductivity of saturated was verified sand by the Fourier's Law, and the practical significance of Indoor-water source heat pump simulator and theory analysis on the water-source heat pump's design was discussed.