The invention discloses a bagged food sealing device based on high-frequency heat sealing. The device comprises a machine body, wherein a packaging cavity extending up and down is arranged in the machine body, the upper side of the packaging cavity is connected with an external food filling device, the lower side of the packaging cavity is connected with an external boxing device, ornament bags tobe thermally sealed are arranged in the packaging cavity, food containing cavities are formed in the ornament bags, a left surface heat sealing device is arranged on the left side of the packaging cavity, and a rotating cavity communicates with the right side of the packaging cavity. According to the device, a rolling heat sealing device is arranged in the heat sealing operation, the sealing performance of a sealing part of a packaging bag is improved, the heat sealing device is provided with a rolling device, so that continuous operation is realized, the sealing efficiency of the device is high, the occupied area of the device is small, and the device is wide in application range.