The invention relates to a mulberry silkworm feeding machine which comprises a discharge device, an unloading device, a conveying device and a rack. The discharge device comprises a storage bin, a spiral conveying pipe, a second motor, a hose, a funnel, a shell and a support frame; the unloading device comprises a third motor, a guide rail base, a synchronous belt, a guide rail, a slider, an unloading pipe, a fixing plate and a tank chain; the conveying device comprises a first motor, a conveyor belt, a drum, a belt pulley and a V belt; feed can be added into the storage bin, silkworm rearingtrays with to-be-fed mulberry silkworms can be arranged on the conveyor belt, the spiral conveying pipe can be driven under the rotation actions of the second motor to rotate, and accordingly the feedcan be conveyed and unloaded; the unloading pipe can be driven by the slider to move in the front-back directions, so that feed releasing work can be carried out on each silkworm rearing tray. The mulberry silkworm feeding machine has the advantages that the rotational speeds of the three motors can be set and adjusted, and accordingly the conveying speed of the conveyor belt, the feeding speed of the spiral conveying pipe, the left-right movement range of the slider and the left-right movement speed of the slider can be adjusted; the problems of deficiency of special young silkworm combinedrearing equipment, inaccuracy in feeding capacity control and heavy and monotonous work at present can be effectively solved by the aid of the mulberry silkworm feeding machine.