The invention provides a flume experiment teaching aid for geological study, and relates to a teaching aid. A flume body consists of a flume A and a flume B in vertical arrangement, wherein a separation plate is arranged at one opposite ends of the flume A and the flume B; the other end of each of the flume A and the flume B is provided with a liquid inlet flume; an opening is respectively formedin the middle part of the superimposed surface of each liquid inlet flume with the flume A and the flume B; and a slide slope is respectively arranged at the lower front end of each opening, i.e., theinside of the flume A and the flume B. Through the arrangement of the two flumes, the comparative watching on different reaction time and different silt deposition states in a sedimentological turbidity current experiment can be realized, and the sedimentological turbidity current experiment can be better studied; during the experiment, through the integral arrangement of a silt stirring device and the flumes, the silt can conveniently enter the flumes used in the deposition experiment; the preparation work procedures of the flume experiment experiments for geological study can be reduced; and the flume experiment teaching aid for geological study can assist the proceeding of sedimentological experiments, and has a high automation degree.