The study presents a current approach to investments evaluation based on the real option theory. Each investment can be materialized through different possibilities, described as real options. It is possible to evaluate the price of real option by utilization of the described model. The real option classification is not steady yet. The real option analysis does not replace the standard techniques (the net present value approach) although they are very important complements - as shown at the end of this article. Real options is at modern approach to capital budgeting.