The utility model discloses a capsule endoscope for checking esophagel disease, including the capsule casing, image device, controlling means, the gasbag, and with the aerifing / air bleeder and pressure sensor of airbag connection, the gasbag is the transparent body, locates capsule casing periphery, aerify / air bleeder and pressure sensor all locate in the capsule casing, aerify / air bleeder is used for driving the gasbag and opens or contract, pressure sensor is arranged in measuring the gas pressure of gasbag. The utility model provides a capsule endoscope for checking esophagel disease can be according to esophagus wall pressure power or wriggling power, through inflating / air bleeder control gasbag size, realizes the abundant contact of gasbag and esophagus wall, slows down capsule functioning speed and strut the esophagus to be beneficial to and to obtain esophagus wall image or video, also can implement the treatment to esophagus wall pathological change local.