The author's Black Hole Cosmology is an unprecedented, original, and authentic scientific theory that has a set of the simplest formulas for everyone to do actual numerical calculations which describes the laws of our universe. In this book, the concepts, theories, formulas, and conclusions of every article are unprecedented innovations.In Part I, the author finds and derives the six most basic Black Hole formulas as the cornerstones to establish a perfect New Black Hole Theory (NBHT). These formulas prove that all Black Holes are convertors that can convert all its matter Mb into energy (Hawking radiation) mss one after one. Moreover, these six formulas have no singularities since they are coordinated and restricted.In Part II, according to the measured data of the current universe, the author uses BH formulas to establish the new and realistic Black Hole Cosmology. These formulas will prove that our universe is a real cosmos black hole from birth to death, and its changing laws conform to all BH formulas.Each article in Part III is a special topic research to solve some important issues of Black Holes and the universe.This book is a professional scientific work and it is written as an easy-to-understand science book, which can be studied by high school and university science students and teachers alike. Also by those interested in Black Holes and cosmology.This book exposes and proves the profound theories in the simple ways. It is full of originality, new knowledges, authenticity, scientificity, philosophical rationality and no blind worship.