The invention relates to a device for preparing alanyl-glutamine.The device comprises a base plate (4), a first side face body (3), a second side face body (6) and a box cover (1).One end of the first side face body (3) is perpendicularly and fixedly connected with the base plate (4).The other end of the first side face body (3) extends, is bent to be located in the same plane as the box cover (1) and is connected with the box cover (1) through a hinge (2).The other end of the box cover (1) is perpendicularly bent.One end of the second side face body (6) is perpendicularly and fixedly connected with the base plate (4).The other end of the second side face body (6) extends and is bent to be a step.The highest face of the step and the box cover (1) are located in the same plane.The perpendicular bent portion of the box cover (1) makes contact with the lowest face of the step.The base plate (4) is provided with a plurality of partition grooves which are arranged at equal intervals.The base plate (4) is further provided with a partition groove plate (5) which can be inserted into the partition grooves.A switch is arranged at the perpendicular bent position of the box cover (1) and the lowest face of the step of the second side face body (6).The inner wall of the first side face body (3) and the inner wall of the second side face body (6) are provided with partition grooves.The base plate (4) is provided with wheels.