The invention provides a detection solution for detecting gastrointestinal pressure in cooperation with a digestive tract motion detection instrument, and relates to the field of digestive tract motion detection. The detection solution is prepared from the following raw materials in parts by weight: 1.5 parts of glycerol, 32 parts of water, 3 parts of ethanol, 3.2 parts of sesame oil, 0.4 parts of hydroxypropyl methyl cellulose and 0.2 parts of egg white. The detection solution provided by the invention is used in cooperation with the digestive tract motion detection instrument; as a swallowed object for detecting a patient, the detection solution can meet the demand of the patient on wet swallowing in a detection process; the detection solution is relatively good in lubricating property and is more easily swallowed by the patient; and in addition, the detection solution has a protective effect on digestive tracts, so that the possibility of digestive tract injury is reduced.