Figs and fig-pollination wasps (Agaonidae) are highly coevolved mutualists that depend completely on each other for continued reproduction. A few non-agaonid wasps can enter figs to oviposit and effectively pollinate their fig hosts. However, there are few studies that compare the pollination efficiency of agaonid and non-agaonid wasps. In Xishuangbanna, Ficus curtipes is monoecious, and is typically pollinated by agaonid Eupristina sp. Two species of non-agaonid wasps Diaziella yangi and Lipothymus sp. also enter the fig to oviposit and can effect pollination. These wasps are specific and strictly dependent on the fig for their development. The pollination efficiencies of the three species of fig wasps were compared in this study. We collected the data from natural populations and combined these with introduction experiments of the three species of fig wasps. We compared the contribution of three fig wasps to the seed production of F. curtipes. The results showed that the number of three fig wasps trapped in the fig cavity was usually one. However, as the number of conspecific foundresses per fruit increased, the number of seeds produced increased. Sometimes the pollination efficiency of D. yangi and Lipothymus sp. was even higher than that of Eupristina sp. When one Eupristina sp. and one non-agaonid wasp were introduced to enter a fig at the same time, the seed production did not significantly increase and the number of seeds was close to that when only one foundress of Eupristina sp. entered. This implied that D. yangi or Lipothymus sp. did not increase the pollination efficiency. When comparing the pollination efficiency of three fig wasps in one- and two-foundress broods, in two-foundress brood the average pollination efficiency of Eupristina sp. and Lipothymus sp. decreased, but that of D. yangi increased. The differences of pollination efficiency possibly result from different interactions between three fig wasps and the host Ficus. The results will be useful for further studying the mutualism origin of the fig-fig wasp interaction.