As paper-based microfluidic devices become diverse and used for detailed diagnostics, developers are making efforts to increase and control the flow in paper. The flow in the paper is the capillary flow described by the Washburn’s equation. The flow is determined by the size of pore and the properties of the working fluid. In order to generate a flowrate over this capillary flow, a high pressure is required to overcome the viscous resistance produced by the small size paper pore. We have used hydrogel as an energy source to create this high pressure. Hydrogels have the ability to absorb more than 100 times their volume of water and are already being applied in a variety of industrial and environmental applications. We have succeeded in producing a large negative pressure by creating a structure that maximizes the ability of the hydrogel to absorb water. We have developed a non-powered pump that can be used in paper-based devices using hydrogels. The pump can generate more than 20 times higher flowrate than the capillary flow in paper channel for more than 4 hours.