The utility model provides a simulation device for researching interference factors of an underground water tracing test, and belongs to the field of physical simulation experiment devices. The simulation device comprises a water supply device, a water outlet device and a monitoring device, the water supply device comprises a water supply tank and a centrifugal pump, a vertical plate is installedin the water supply tank, and the centrifugal pump pumps water from the water supply tank; the water outlet device comprises an open channel and an energy dissipation plate, and a water outlet is formed in one end of the open channel; the monitoring device comprises a fluorescence tracer and black-out cloth. The device is simple in structural design and convenient in data measurement, can simulatethe flowing condition of underground water in a field tracer test, enables the added tracer agent to be fully dispersed, further can carry out interference experiments among different types of traceragents, and has wide application value and market value.