Distributed generation,a new flexible and efficient generating skill,is the most important development in power system.With the increasing scale and capacity of distributed generation and integration of distributed generation,more attention is paid to the secure operation of distributed generation.Lightning stroke is an important one in the factors influencing the secure operation of distributed generation,.According to the research achievements of lightning protection for distribution network,the lightning stroke process and damage mechanism of distributed generation system and its lightning protection technology are analyzed here.A design of lightning protection for distributed generation is given.