The utility model relates to a ski-mounted produced water conveying device which is applied to the technical field of natural gas extraction in oil and gas fields. The ski-mounted produced water conveying device provided by the utility model is characterized in that a flash evaporator is of a horizontal type round can shape, a produced water inlet port is connected with one end of the flash evaporator, and the flash evaporator is provided with a gas discharge port; the flash evaporator is connected with a pressure gauge; the flash evaporator is provided with a manhole; the flash evaporator is connected with an input port of a produced water discharge unit by virtue of a pipeline and a valve, an output port of the produced water discharge unit is connected with the input port of a produced water pressurizing unit, the output port of the produced water pressurizing unit is connected with a produce water metering unit by virtue of a pipeline, and the produced water metering unit is provided with an external output port. The ski-mounted produced water conveying device disclosed by the utility model has the effect that the problems that a construction period is long, organization and coordination difficulties are high, investment cost is high and floor area is large are solved as ski-mounted design is adopted.