Medical auxiliary device for digestive tract

The invention discloses a digestive tract medical auxiliary device which comprises a machine shell, an observation cavity is formed in the machine shell, a threaded hole is formed in the upper end wall of the observation cavity, an observation mechanism, a transmission mechanism, a suction mechanism and a medicine feeding mechanism are arranged in the machine shell, and multi-angle observation of an affected part is achieved through a carrier plate which is arranged in the observation mechanism and can adjust the inclination direction. A suction cavity capable of sucking and storing digestive juice at the focus is formed in the suction mechanism, so that the digestive juice at the focus of the patient can be conveniently collected, follow-up diagnosis and treatment are facilitated, direct medicine applying to the focus is achieved through a hollow-out ball which is arranged in the medicine applying mechanism and communicated with a medicine conveying pipe and can stretch out, and the medicine applying efficie