First introduced highway alignment's definition, the significance, the developing process and the CASIO series calculator in the highway surveying computation application; Using the traverse survey computation's two basic mathematical model (azimuth calculation, coordinate calculation), compile the corresponding procedure to solve echo the wire coordinate computation; With the aid in the mathematical model which three, four and so on leveling's field operations calculate, compiles the corresponding procedure to solve the road elevation survey computation; According to relaxes the circular curve principal point and the detail coordinate computation mathematical model, based on this programs the solution to relax the circular curve coordinate principal point and the detail coordinate computation, then further develops this procedure to use to calculate the circular curve principal point and the detail coordinate Through to the road grade separation circular route mathematical model's research, has based on this compiled the road grade separation circular route coordinate computational procedure; Each kind of curve linear on the one hand pile computation general formula's establishment, is advantageous in the programming solves on the other hand any curve the pile In view of meets the stopped chain frequently the estimation problem, proposed the stopped chain processing Above the synthesis utilizes calculator's computational procedure may solve the highway alignment place coordinates and the elevation estimation problem based on various mathematical model development CASIO the fx-5800, and has the example to confirm