A powerful PDB-data-retrieval system “PDB Diving Booster,” which is a collection of functions/methods for data-retrieval and datatransmission, will enhances high-performance parallel-distributed programming in the field of structural biology. This system provides with 1) functions for reading whatever irregular data in PDB file, 2) methods to access and calculate elementary data in the structured object representing a protein structure, and 3) powerful data-transmission functions/methods for a parallel distributed environment. High performance parallel analysis of protein structures is realized only by writing a simple and short program in C++ and linking over libraries.