This symposium issue of Work and Occupations on “The New Labor Activism” develops a new generation of labor sociology research for comprehending and sustaining the contemporary labor mobilization in the U.S., the largest labor mobilization since the 1930s. The symposium responds to the question raised in the June, 2022 report of the Worker Empowerment Research Network about the sustainability of the new labor activism. The symposium essays focus on the themes of “history,” “intersectionality,” “worker agency,” and “hierarchy” and continue the post-World War II transition of the field from a union-centered toward a worker-centered labor sociology.