Wireless voice monitoring method of railway engineering operation

The invention relates to a wireless voice monitoring method of railway engineering operation. According to the method, a voice digitization compression technique is used, storage and wireless transmission of operation voices are performed by using a high compression rate, and a pubic mobile network is combined with a monitoring terminal, a server and an inquiring terminal to perform remote real-time monitoring and loading; and a 450MHz antenna is used for sending and receiving signals of a 450 MHz network side and sending and receiving signals of the public network side through a data transmission antenna. The server and the terminal devices are used for real-timely monitoring engineering sites and monitoring or inquiring voice records of any engineering site so that remote loading of recording data of set time sections is achieved, safety management of railway engineering operation is facilitated, the application ranges are wide, and the method has a promotional value.