The wear-resistant electrode for desulfurization adopts flat head desulfurization, which is used in flue gas desulfurizationFor PH measurement, the gel electrode is used, which is maintenance free. The electrode can still maintain high accuracy under high temperature or high PH value. The flat glass bulb is used, which is highly resistant to pollution and impact. Widely applicable to environments such as lime water, desulfurization, viscous liquids, and slurries, it is easy to use and can be cleaned less frequently. The flat head pH electrode is not easy to adhere to slurries and is suitable for detecting harsh environmental conditions.