Abstract: Local Geoid with high precision has important practical values.In this paper both the design and realization of the unitary frame and the detailed modules as components of the system are given in order to determine the local Geoid with high precision.Based on this,the systematic software is developed as a tool to process the gravimetric data automatically.As an example,this set of software is applied in certain area to practically calculate its local Geoid.It's proved in the practical use that this software can greatly improve the data processing efficiency and is helpful to standardize the calculation process of local Geoid with high precision.