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The Large High Altitude Air Shower Observatory (LHAASO), a major national science and technology infrastructure project in China, has achieved a groundbreaking discovery in gamma-ray astronomy. Using over 1,200 days of observational data, LHAASO detected ultra-high-energy gamma-ray radiation from the tail region of the bow-shock pulsar wind nebula (BSPWN) associated with the pulsar PSR J1740+1000 with a significance of 17 standard deviations. This marks the first observation of gamma-ray radiation from the tail of a bow-shock pulsar wind nebula, challenging existing theories on particle transport mechanisms and suggesting the presence of a robust particle acceleration process in this region. The findings were published on February 7, 2025, in the academic journal The Innovation.