The invention discloses a material conveying device which comprises a material conveying assembly, a blocking assembly and a jacking assembly. The material conveying assembly is provided with a conveying channel extending along the axial direction of the material conveying assembly; the conveying channel is sequentially provided with a feed end and a discharge end along the conveying direction ofthe conveying channel; the material conveying assembly can convey materials to the discharge end from the feed end; the blocking assembly is located above the conveying channel; the jacking assembly is located under the conveying channel and is arranged opposite to the blocking assembly; the jacking assembly can be used for upwards jacking the materials moving to a first preset position, so that at least one part of the upper end surfaces of the materials pushes against the blocking assembly; the jacking assembly comprises a jacking part and a jacking drive piece; the end surface of one side,facing the direction on which the blocking assembly is located, of the jacking part forms a force application surface pushing against the materials; the width of the force application surface along the width direction of the conveying channel is not larger than 1mm; and the jacking drive piece is connected with the jacking part so as to drive the jacking part to move on one side, facing or back onto the direction on which the materials are located. The material conveying device is simple in structure and high in positioning accuracy.