Vazov often associates with revolutionaries among expatriates and is deeply influenced by Porter. The poem Pine Tree (1872), full of revolutionary passion, won him a reputation. Later, Vazov joined the Sobot Secret Revolutionary Committee led by Cabo· Leshkov to prepare for the armed uprising. The poem Panagiuris and the Rebel Army published in this period called on the people to fight, which played a positive role in promoting the April uprising of 1876. After the failure of the April uprising, he went into exile in Romania and continued to write poems in Bucharest, which reflected the people's determination to "give up freedom or give me death", exposed the cruelty of foreign rulers in suppressing the uprising and reflected the people's suffering. The poems Flag and Qin (1876) and Sorrow in Bulgaria (1877) are outstanding masterpieces. These two poems and Redemption (1878) constitute a trilogy describing the April Uprising, which promoted the development of Bulgarian progressive poetry.
1878, Bulgaria gained its independence, and Vazov returned to China as the president of Berkovica District Court. During this period, the novella Mitrofan and Taormi Dolsky (1882) was written, which described the ugly situation of a judge nicknamed "Little Pig" and a lawyer nicknamed "Dog Head", and they fought for power and profit, cheating and cheating, which deeply mocked the vulgarity and boredom of the upper-class life in other provinces.
1880, Vazov moved to plovdiv, organized a literary group called Science, and founded a magazine with the same name; Later, he edited Dawn magazine and People's Voice, and published poetry anthology Qin (188 1), Field and Forest (1884), Italy (1884) and novella Exile. He also wrote a series of poems, The Forgotten Epic, which created a series of national heroes and marked the peak of Vazov's patriotic poetry. In addition, his eight poems, such as Stone Mountain and Zagorka (1883), are all about striving for national liberation.