The present invention provides an online video system and method that integrates AV video communication and AI object recognition. The system includes a terminal body, a rotatable tripod, and a dual camera mechanism; the dual camera mechanism includes a support frame, a dual camera accommodation cavity, and a main camera , from the camera, gyroscope and main control circuit board; the master camera is set forward, the slave camera is set forward and obliquely downward, the master optical axis of the master camera and the slave optical axis of the slave camera have a A certain included angle; the gyroscope is used to collect the setting angle of the main optical axis of the main camera. The advantages are: (1) adopts dual camera design, supports simultaneous AV video calling and AI object recognition, and is convenient to use; (2) supports angle adjustment to adapt to users of different heights and different applicable scenarios; (3) integrated design, simple and beautiful, High reliability. (4) During AI object recognition, the method of correcting images by perspective transformation is used to improve the accuracy of AI object recognition.