This paper discussed the psychological development stageof adolescents and children after
sudden changes, and analyzed the causes of psychological problems that may occur after sudden changes.
From the family, school and society three aspects to explore t-he intervention measures after
the occurrence of changes, to help t-eenagers and children face the sudden changes correctly, master
thecorresponding coping skills, improve their mental health level. Hope to be able to help encounter
sudden changes of adolescents and ch-ildren to deal with psychological crisis correctly, reinvigorate,
realiz-e self.