The utility model discloses a lens hood in compound eye imaging system, the front end opening of lens hood is provided with tempered glass pieces. Sealed clamping ring is connected through the screw thread with the lens hood front end to compress tightly tempered glass pieces. The rear end aperture area S1 of lens hood is greater than front end aperture area S2, and rear end aperture area S1 is more than or equal to compound eye camera lens array area S0, and it is long -pending apart from the logical plain noodles of locating of light beam that front end aperture area S2 is greater than compound eye camera lens array minimum length photocentre. The lens hood the epaxial extension of light length L be less than or equal to horizontal photocentre apart from L level and vertical photocentreapart from L the less value between vertical.