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The invasive golden apple snail <i>Pomacea canaliculata</i> has a strong reproductive capacity and has rapidly spread in Asian countries. Current control methods include physical, chemical, and biological approaches, but there has been limited research on the control of <i>P. canaliculata</i> in its different life stages. This study assessed the effectiveness of using giant river prawns <i>Macrobrachium rosenbergii</i> in controlling juveniles of <i>P. canaliculata</i> through a controlled indoor experiment. The density, size, and dispersal range of recently hatched juvenile snails were significantly lower among those kept with prawns than those kept without prawns, indicating a control effect of <i>M. rosenbergii</i> at least on <i>P. canaliculata</i> juveniles. Furthermore, the study speculates on the potential application of <i>M. rosenbergii</i> in the context of a rice–prawn symbiotic system of ecological farming to control invasive <i>P. canaliculata</i>. In terms of effectiveness and safety, its application might lead to a win-win situation for both rice-farm profits and the ecological benefits of invasive species control.