SEP events observed at Mars by the Chinese Tianwen1 mission over the past years

The Chinese Tianwen1 mission arrived at Mars since 2021 and the Mars Energetic Particle Analyzer (MEPA) instrument has been monitoring the energetic particle fluxes at the orbit of Mars, measuring protons in the energy range up to 100 MeV. It has captured a series of Solar Energetic Particle (SEP) events at Mars and we have anlayzed the energy spectra and time evolution and each event and derived their statistical properties which show different characteristics from SEP events detected elsewhere. We will give a brief summary of the MEPA observed SEP events at Mars in comparison to other events observed at Earth and other locations.