In this paper, the author redefines the concept of phase transition in a more general sense, provides an accurate characterization method, and derives the phase transition equation and phase transition temperature formula. On this basis, the essential properties of superconducting phase transition areanalyzed, and the general superconducting phase transition equation is derived. The author argues that the superconducting phase transition of high-temperature superconducting materials,including cuprates, iron-based, nickel-based superconductors, and high-pressure hydrogen-richsuperconductors, still follows the conductive electron pairing mechanism. The key to the highsuperconducting temperature lies in the stronger space-time correlation between conductiveelectrons in low-dimensional structures. Based on the geometry of space-time structures, theauthor defines a more general space-time correlation formula between particles, reveals the logical relationship that the correlation between conductive electrons decreases geometrically with increasing dimensions from the most general conditions, provides relevant formulas, and further analyzes the intrinsic mechanism of the high superconducting phase transition temperature，and proposes the process of developing new high temperature superconductor.