To obtain a program code generation support device, method, and the like, capable of generating a new program code, in particular, generating in accordance with an incorporating apparatus, by performing a further optimization on a program code. The device includes storage means for storing as data, an optimization rule that is composed of a conversion condition for converting data of a program code and a conversion content thereof, and code optimization means that includes a code analysis unit for analyzing the program code, a condition search unit for search a part matching the conversion condition in the program code through a collation with the optimization rule stored in the storage means on the basis of the analyzed program code, and an optimization unit for generating data of a new program code by converting the part matching the conversion condition on the basis of the conversion content.