In master’s diploma work „The investigation of multidimensional data visualization methods“ the wide review of multidimensional data visualization methods is presented. The author was limited to research only two multidimensional data visualization methods such as: a parallel coordinates visualization method and Andrews curves visualization method. The program realization of both methods is realised, i. e. computer program was written for comparing those methods. To write program the tools of MS Excel and MATLAB were used. The performance of these methods is analyzed by using the mostly used data: Iris, HBK, Wood multidimensional data. The data generated by MS Excel and statistical data, taken from real life also were used. The investigations show, that the data visualization by a parallel coordinates method has some advantages comparing with Andrews curves visualization method.