The invention belongs to the field of oilfield chemistry and specifically relates to a zirconium gel particle combination flooding system. The zirconium gel particle combination flooding system comprises multi-scale 1 zirconium gel particles, polyether nonionic surfactant, and water as mixing liquid; the weight percentage of multi-scale zirconium gel particles in the combination flooding system ranges from 0.16% to 0.24%; the weight percentage of polyether nonionic surfactant in the combination flooding system ranges from 0.1% to 0.4%; the rest is water, and the sum of the weight percentage of the each component is 100%. The multi-scale zirconium gel particles and polyether nonionic surfactant of the present invention perform good synergistic effect, which reduces the oil/water interfacial tension to the order of magnitude of 10−3 mN/m, significantly improves the displacing efficiency of the flooding agent, avoids the adverse effects caused by polymer viscosity loss in binary combination flooding or ternary combination flooding and the adverse effects caused by alkalis, as well as improves the flooding performance of the combination flooding system.