In this thesis we examines one of the famous effects of fundamental particle physics, That is the Schwinger effect. This effect is based on zero-point energy. Physicists believe that in the vacuum Photons become virtual particle and virtual antiparticle and vice versa. Schwinger effect is Believes that we can apply an electric field to the vacuum and create the real particle pair from a pair of virtual particles. In the second chapter of this thesis, using the string theory, we examine the holographic of Schwinger effect. In this chapter, we obtain the electric field limit for separating the virtual particle pair for a zero temperature case (Schwinger effect) and for a limited temperature case (Schwinger effect + radiation effect). In the third and fourth chapters of this thesis, we investigated the Schwinger effect using the theory of quantum fields in curved space-time. In these chapters, the average number of real particles produced around the black hole is calculated for the case of zero temperature (Schwinger effect) and for the case near zero temperature (Schwinger effect + radiation effect)