The invention is SOS Emergency assistance LED life jacket,Installation of multiple high-brightness LED lights in a life jacket shoulders and back. Installed in the left chest zinc - air batteries and secondary energy storage components. When a person accidentally falling into the sea. Seawater and zinc battery with a hole through the bottom of the reaction. The process of generating electric energy, LED emitted light. This is the key to success this year to rescue shipwreck, when the drowning person wearing lifejackets new LED, LED signal lights in the dark sea, so that rescue workers into the sea to find every person.