After brief introduction to plasma wakefield accelerators, I will present the conceptual design of a new European research infrastructure, EuPRAXIA. The concept has been establish over last 4 years in a collaboration of 30 institutes in Europe and 11 laboratories in Asia, Russia and the United States. EuPRAXIA is the first European project that develops a dedicated particle accelerator research infrastructure based on novel plasma concepts and laser technology. I will also present ALEGRO project, which considers long-term prospect of applying novel accelerators at the high-energy frontier of particle physics.
