By adopting the assumption of elastic space-time, we can derive the wave equation of gravitational waves. Inspired by this, this article attempts to discuss the bending of spacetime by static mass. Because mass is also a form of energy, mass can also have a bending effect on spacetime. This article assumes that space-time is an elastic substance, so the existence of mass will squeeze space-time and cause the phenomenon of space-time bending. This article believes that the existence of mass will result in a Schwarzschild radius hole in spacetime. The void will squeeze the surrounding spacetime. Considering that mass squeezing spacetime requires "force", therefore, to squeeze out a Schwarzschild radius cavity in spacetime, work is required. This article believes that the energy required to squeeze out this cavity is equal to the energy corresponding to the mass. This is the energy possessed by the static gravitational field. After analyzing this squeezing effect with the knowledge of elasticity, it can be found that the existence of space-time is related to mass. Only the location where mass or energy exists can form space-time, and the radius of this space-time is proportional to the third power of mass. However, the analysis in this article also has shortcomings, including whether the space-time radius exists or not. It is just a conjecture at present, which directly affects the calculation of the space-time elastic modulus and other constants involved.