Abstract: This paper described the design and implementation of command‘BP'(Batch Processing) for which we make the ALGQL compiler on DJS-6 computer version 78 as a background. This interpreter makes careful and skilful handling for the varieties of problems which may appear in running; it is compatiable with ALGOL campiler on DJS-6 computer version 78. The operation of‘BP' is simple and logical to remember and convenient to use.