A rotating black hole is supposed to lie in a standard acc.retion disk.Imaging of the black hole shadow in an accretion disk are drawn as accretion disk inner boundary is equal to the last stable orbit.With qualitative and quantitative analysis of shape and position of a black hole,it is found that the size and shape of a black hole shadow for black holes with same mass are relevant to black hole spin.Shape and position of n rotating black hole shadow are asymmetrical relative to its rotating axis.The center of mass and rotation parameters of a black hole are determinated with position between rotating axis and black hole shadow.