Using MATLAB for developing, simulating and implementing algorithm software has become one of primary means for researchers. Although the algorithm developed on MATLAB is convenient and efficient, it cannot be directly applied to other platforms, it has to be under secondary development. If one algorithm is to be applied in both Windows and Linux systems, the software engineers need to coder two software, which are same functional but not in same form. That not only largely increases the workload, but also inconvenient to subsequent maintenance. To solve those problems, this paper formulates a method for rapid development of cross-platform algorithm software based on MATLAB. Firstly, algorithms are developed and validated in MATLAB for its convenience; Secondly, MATLAB Coder is used to generate C/C++, which is independent of MATLAB; Then generated code are packaged into corresponding platform dynamic link library in target platform; Finally, by calling interface functions is able to achieve the requirement of the same algorithm software running on different platforms. The method mentioned above has been successfully applied to some engineering projects. During the period of software development, the method not only shortens the software development cycle, improves the efficiency of programming, reduces the errors of human, but also facilitates software post-maintenance.