The invention relates to the technical field of equipment for testing or treating seeds, rhizomes or analogues before
sowing or planting, and provides a multipurpose experimental box for rice
cross breeding and
pollination, which comprises a box body, the box body is provided with a box cover capable of being opened and closed, and the box body and the box cover can form a
closed cavity; a detachable supporting plate is transversely arranged in the middle of the box body, a plurality of rice ear culture glass tubes are arranged on the supporting plate, and a plurality of through holes are formed in the bottoms of the rice ear glass tubes; a heating
pipe is fixedly sleeved on the periphery of the box body, and a temperature sensor is fixedly installed at the center position of the supporting plate through a center installation seat. According to the invention, external interference can be effectively avoided through the closed box body, and the arrangement mode of the heating
pipe can effectively carry out temperature rise control aiming at the environment temperature and effectively avoid adverse effects caused by too high local temperature; on the whole, various environmental influence factors in the rice cross
pollination process can be simply and effectively controlled, so that the influence of
adverse weather is avoided, and the effective development of a rice
cross breeding experiment is greatly promoted.