The present invention relates to a cytosporacarphosperma controlling combined formulation reagent and application thereof, and the combined formulation reagent comprises two or three fungicides selected from the group of tebuconazole, triadimenol, azoxystrobin and triadimefon, and further comprises wound healing promoting plant hormones 6-BA (6- benzylamino adenine) and NAA (naphthaleneacetic acid) and pharmaceutical synergist organosilicone (Si). Tests prove that the combined formulation reagent has a strong inhibitory effect on cytosporacarphosperma bacteria, field experiments prove that the cytosporacarphosperma controlling combined formulation reagent has a good cytosporacarphosperma controlling effect, and can effectively control cytosporacarphosperma, agriculture loss is reduced, the loss of the economy is reduced, and farmers' income is increased.