  In 1990's Very High Energy Gamma-ray Astrophysics has dramatically advanced
due to the Imaging Air \v{C}erenkov Telescopes(IACTs). After the first
detection of TeV gamma-ray emission from the Crab nebula in 1989, several type
of TeV gamma-ray sources, Active Galactic Nuclei(AGN), young pulsar, and
SuperNova Remnant(SNR), have been detected. In those discoveries, recent
detections of both synchrotron X-rays and TeV gamma-ray emissions from several
SNRs are very significant. SNR has been widely believed to be an unique
candidate of galactic cosmic-ray origin since the beginning of cosmic-ray
physics, whereas little observational evidences have been reported so far.
Those are expected to be a clue of not only the galactic cosmic-ray origin but
also the understanding of the particle acceleration due to a diffusive shock.
Here I present the recent results obtained by our group, CANGAROO, about the
evidences of electron and proton acceleration in SNRs.
