A method for environment detection to be implemented by a system, which includes a detection module and a control module, includes the steps of establishing a wireless communications link between the detection module and the control module, enabling the detection module to generate a warning signal that is transmitted wirelessly by the detection module when the detection module detects occurrence of an abnormal environment condition, and enabling the control module to receive the warning signal from the detection module through the wireless communications link and to process the warning signal accordingly. A system for realizing the method is also disclosed.