The invention discloses an acousto-optic control circuit of a multi-language toy car. The acousto-optic control circuit of the multi-language toy car is characterized by comprising a control chip U1, input circuits, a filter circuit and an output circuit, and the input circuits, the filter circuit and the output circuit are connected with the control chip; the input circuits comprise a language switching control circuit and a sound production control circuit. The acousto-optic control circuit of the multi-language toy car is ingenious in design, can control the output circuit to produce light and sound through the control chip, achieves a function of pronunciation switching among Chinese, English and Russian, during playing, and can also set light emitting and sound production effects, such as producing corresponding sound and performing corresponding light flashing according to actions of door opening of the toy car, through the input circuits; vividness and interestingness can be obtained, a lively atmosphere can be improved, the sense of dullness of a player can be avoided, playability and interestingness of the toy can be remarkably improved, and good entertainment can be obtained.