The invention discloses an intelligent flow instrument, relating to the technical field of intelligent instruments. A conveying blade roller is mounted on the right side inside a shell; a rotating shaft of the conveying blade roller penetrates through the shell; the rotating shaft of the conveying blade roller is connected with a rotating shaft of a driving motor through a shaft sleeve; a filtering net is arranged on the left side of the conveying blade roller; a detection bin is arranged on the left side of the filtering net and connected with the interior of the shell; a detection blade roller is arranged inside the detection bin; the rotating shaft of the detection blade roller penetrates through the detection bin; a sealing sleeve is arranged at the joint of the rotating shaft of the detection blade roller and the detection bin; the rotating shaft of the detection blade roller is connected with a shaft of an encoder through the shaft sleeve; the encoder is connected with the input end of a control chip through a signal line; and the output end of the control chip is respectively and electrically connected with the driving motor and a display screen through guide lines. The intelligent flow instrument disclosed by the invention is capable of realizing pressure control, so that the detected data is accurate, the operation is simple and convenient, and the working efficiency is high.