Who was the standard-bearer of China modern poetry school in 1930s?

Dai wangshu.

Modernist poetry schools mainly include Dai Wangshu, He Qifang and Bian. Dai Wangshu is recognized as the representative of China's modernist poetry in 1930s.

Modern poetry school is a poetry school that consciously pursues the artistic beauty of pure poetry under the agitation of liberal literary thoughts. Named after Modern magazine founded by Shi Zhecun in1May, 932.