The invention discloses diving training, which belongs to the technical field of diving training equipment. The training device includes a training chamber, which is provided with a training net frame, one side of the training net frame is connected with a traction rope, the other sides of the training chamber are slidingly connected with the inner wall of the training chamber, and the training net frame is also provided with a An emergency distress device is arranged, and the emergency distress device is electrically connected with the first alarm device arranged outside the training cabin, and the traction rope extends to the outside of the training compartment, bypasses the pulley and is connected with the traction rope winding mechanism. The training net frame of the training device of the present invention can not only train the operation ability but also timely rescue divers, improve the safety of training, and detect the water temperature, water pressure and oxygen concentration through the temperature detector, oxygen sensor and pressure sensor, And the detection data is sent to the controller for later evaluation and analysis of the training situation, and the camera device is used to monitor and record the entire training process.