An automatic driving processing system comprising: an automatic driving processing module, configured for receiving an input data stream and processing the input data stream based on a deep learning model so as to generate a processing result; a fault detection module, configured for generating a control signal and a fault detection stimulating data stream, and receiving the processing result from the automatic driving processing module; and a multi-way selection module, configured for receiving an automatic driving data stream as well as the control signal and the fault detection stimulating data stream from the fault detection module, and selectively outputting the automatic driving data stream or the fault detection stimulating data stream to the automatic driving processing module based on the control signal, as the input data stream of the automatic driving processing module, wherein the fault detection module is further configured for comparing a processing result of the fault detection stimulating data stream received from the automatic driving processing module with a predetermined result corresponding to the fault detection stimulating data stream, and determining whether a fault occurs in the automatic driving processing module in response to the comparison; wherein the fault detection module is further configured for: receiving from the automatic driving processing module a processing result of the automatic driving data stream; generating the control signal and the fault detection stimulating data stream in response to the determining that a fluctuation of the processing result of the automatic driving data stream exceeds a threshold, such that the multi-way selection module outputs the fault detection stimulating data to the automatic driving processing module based on the control signal; and receiving the processing result of the fault detection stimulating data stream from the automatic driving processing module. an automatic driving processing module, configured for receiving an input data stream and processing the input data stream based on a deep learning model so as to generate a processing result; a fault detection module, configured for generating a control signal and a fault detection stimulating data stream, and receiving the processing result from the automatic driving processing module; and a multi-way selection module, configured for receiving an automatic driving data stream as well as the control signal and the fault detection stimulating data stream from the fault detection module, and selectively outputting the automatic driving data stream or the fault detection stimulating data stream to the automatic driving processing module based on the control signal, as the input data stream of the automatic driving processing module, wherein the fault detection module is further configured for comparing a processing result of the fault detection stimulating data stream received from the automatic driving processing module with a predetermined result corresponding to the fault detection stimulating data stream, and determining whether a fault occurs in the automatic driving processing module in response to the comparison; wherein the fault detection module is further configured for: receiving from the automatic driving processing module a processing result of the automatic driving data stream; generating the control signal and the fault detection stimulating data stream in response to the determining that a fluctuation of the processing result of the automatic driving data stream exceeds a threshold, such that the multi-way selection module outputs the fault detection stimulating data to the automatic driving processing module based on the control signal; and receiving the processing result of the fault detection stimulating data stream from the automatic driving processing module. receiving from the automatic driving processing module a processing result of the automatic driving data stream; generating the control signal and the fault detection stimulating data stream in response to the determining that a fluctuation of the processing result of the automatic driving data stream exceeds a threshold, such that the multi-way selection module outputs the fault detection stimulating data to the automatic driving processing module based on the control signal; and receiving the processing result of the fault detection stimulating data stream from the automatic driving processing module.