It is found that energy density of static sphere symmetry of gravitational field is negative in the sphere coordinates and their energy density is positive definite in the Cartesian coordinates.

• 在球坐标系和直角坐标系下我们用Einstien-Tolman(E-T)表述计算球对称静态引力场的能量密度,发现在球坐标系下能量密度为负,而在直角坐标系下能量密度为正;