Abstract: Disclosed is an active inserted gastric tube with an intra-body communication function, including a tube body, a pulse module, an intra-body communication module and a control module. The pulse module is arranged at a front end of the tube body, and is configured to generate a pulse signal. the intra-body communication module is configured to receive the pulse signal generated by the pulse module and transmit the pulse signal to the control module. The control module is configured to analyze the received pulse signal. In this way, the pulse signal is generated by the pulse module, and the gastric tube is inserted into the esophagus through the tube body. The pulse signal is transmitted through a human body to realize an intra-body communication. The control module analyzes the pulse signal transmitted through the human body, so as to identify whether the tube body is inserted into the esophagus or trachea.