  Gravitational-wave high-energy Electromagnetic Counterpart All-sky Monitor
(GECAM) is a space-borne instrument dedicated to monitoring high-energy
transients, including Terrestrial Gamma-ray Flashes (TGFs) and Terrestrial
Electron Beams (TEBs). We implemented a TGF/TEB search algorithm for GECAM,
with which 147 bright TGFs, 2 typical TEBs and 2 special TEB-like events are
identified during an effective observation time of $\sim$9 months. We show
that, with gamma-ray and charged particle detectors, GECAM can effectively
identify and distinguish TGFs and TEBs, and measure their temporal and spectral
properties in detail. A very high TGF-lightning association rate of $\sim$80\%
is obtained between GECAM and GLD360 in east Asia region.
