Along with time passing, human society already entered quietly the 21st century. The 21st century is the era of knowledge economy, is the information technology time, is the digitized time. The unit manages the modernization ﹑ office automation and the policy-making scientific style, are the modernization administration of office development inevitable trends. Is also weighs a unit informationization the important symbol. The unit staff's wages information management takes the important aspect which a unit manages, its variable factor are many, the management is complex, tedious, the time span is big, in addition the fixed cardinal number is big, forms the huge data quantity, labor management difficulty. Therefore has developed the unit staff payroll system software.