The invention discloses a simulated phytotron for Arma chinensis breeding, comprising a house body which is closed inside. A Mythimna separata larva raising device, an Arma chinensis larva breeding device, an Arma chinensis adult feeding device, a temperature control device and a humidity control device are arranged in the house body. The simulated phytotorn aims to solve the problem of low survival rate of Arma chinensis in artificial raising in the prior art.