Safe lightning protection system

The invention provides a safe lightning protection system used for a city building. The safe lightning protection system comprises multiple lightning rods with adjustable heights and an industrial control computer. When a certain lightning rod with adjustable height suffers from thunderstorm, and the lightning rod with adjustable height is damaged, the lightning rods with adjustable heights within a preset range around the damaged lightning rod are modulated to the highest position, so that the safety of the lightning rods with adjustable heights can be protected. The safe lightning protection system used for the city building has the advantages of simplicity and practicability, and has wide application prospect. 本发明提供了种用于城市大楼的安全避雷针系统，该系统包括多个可调高度避雷针和工控机，当某个可调高度避雷针处的天气为雷雨天气时，且该可调高度避雷针发生损坏，则将其周围预设范围内的可调高度避雷针调制最高，则就保护该可调高度避雷针的安全。本用于城市大楼的安全避雷针系统具有简单、实用的优点，具有广泛的应用前景。