Z-pinch nuclear fusion system is the mechanism of creating nuclear fusion by magnetic confinement method. In this paper, temperature and velocity of implosion is estimated. By introducing a proper model, the parameters of Z-pinch are estimated and calculated and then the introduced model is confirmed by using experimental data of Sandia lab. At the end, by comparing these two models and the experimental results, the validity of the model is investigated. In practice, all estimates based on assumptions are often correct only within the order of parameters magnitude.