The invention discloses a video live broadcast device based on a mobile network. The device comprises a shell, a touch display screen is embedded in the front face of the machine shell. A loudspeakeris embedded in the middle of the top end of the front face of the machine shell. An operation key is embedded in the left side of the machine shell. A central processing unit is fixedly installed in the middle of the interior of the machine shell. A wireless communicator is fixedly arranged on the left side of the top end in the machine shell. A camera is fixedly arranged on the right side of thetop end in the machine shell. A camera is fixedly arranged in the casing, a picture acquisition end of the camera penetrates through the front surface of the casing, a data memory is fixedly arrangedon the left side in the casing, an encoder is fixedly arranged on the right side in the casing, a lithium battery pack is fixedly arranged at the bottom end in the casing, and a microphone is arrangedon the right side of the bottom end in the casing. The device is simple and reasonable in structural design, convenient to operate and carry, good in live broadcast effect and beneficial to popularization and popularization.