The goal of this research is studying of synthesis and decay properties of transuranium nuclei. Interest in studying of superheavy nuclei interaction and determination of their equation of motion increased rapidly with recognition of nuclear models and scientist curiosity for discovery of new elements. In this thesis, we have tried to choose best reactions that cause to produce of superheavy elements, their fusion cross section is calculated and then proceed to investigate about mod of decay. At first, we proceed to introduce of nuclear models, interactions and history of researches about synthesis of superheavy nuclei and then doing calculations and parameters by definition of formula for determination of fusion cross section. Our results camper with experimental data.