We have developed a set of modem internet of things information technology ---- "Internet of things system of LPG cylinder safety" based on current status & feature of LPG industry after technology research and development for many years. We developed "LPG intelligent valve", "LPG Intelligent filling head", "Intelligent Hand-held terminal", "Information management platform of cylinder safety" etc software & hardware facilities to overcome chronic problems such as: using LPG cylinders, management filed of LPG industry. It has promoted management level of LPG cylinders a lot and property safety of LPG gas companies and end users. It will play a positive role for preventing LPG safety accident, maintaining social stability, promoting the harmonious development of economy.