The invention discloses a high-viscosity lubricating grease supplying and pumping system and method, and relates to the technical field of lubricating grease pumping systems. The high-viscosity lubricating grease supplying and pumping system comprises a grease storing cavity, grease supplying pipelines, a grease supplying pump, a pressurizing part, a heating part, a detecting part and a controller; the grease storing cavity is provided with one or more movable side walls, the input end of the grease supplying pump is connected to the grease storing cavity through the corresponding grease supplying pipeline, and an outlet of the grease supplying pump is externally connected to a distributor through the corresponding grease supplying pipeline; and the output end of the pressurizing part pushes the one or more movable side walls of the grease storing cavity in an abutting mode, and all or one section of the grease supplying pipeline between the grease storing cavity and the grease supplying pump is wrapped with the heating part. Lubricating grease can be heated and pressurized before entering the grease supplying pump, the viscosity of the high-viscosity lubricating grease is improvedthrough heating, the liquidity of the high-viscosity lubricating grease is improved, the effect of grease supplying pump evacuation caused by the insufficient inlet pressure in the pumping process ofthe lubricating grease is avoided through pressurizing, and finally the high-viscosity lubricating grease is pumped stably and reliably.