Abstract
Recent status of high pressure and high temperature research under the condition of the Earth and planetary core are reviewed. Phase diagram of iron is important to investigate the core of terrestrial planets, but is still debated on the experimental results of both static and shock experiments. Hydrogen-helium system is major component of giant planets, which core condition are beyond the maximum pressure range achieved in laboratory. Future researches need a breakthrough in experimental technique and progress of theory and more observations for these planets.
