Inputting necessary machining information is the first step of machining process on a CNC machine tool.And seeking for less
complicated and more efficient input methods is a vital aspect of the development of NC technique.Machining Task Indicative Input is an automatic generating technique designed according to the operator's usual practice.The CNC machine tool operator controls the moveable parts of machine tools and cutting tools,and the indicator will automatically generate NC codes at the same time of finishing the idle motion and test cutting.In this way,operators who do not know the NC coding principle can also complete the work of machining programming.This paper consists of three main parts as follows.Point one:it describes the composing of the micro-processor system which can bring the method
mentioned into effect.Point two:it gives the obtaining and Processing theorem of starting point
parameters,,direction parameters,velocity parameters and ending point parameters.Point three:it presents a comparison betwecn the method mentioned and other methods.