Over the years, under the "leftist" ideological influence, especially in the "Cultural Revolution", Lin Biao, Jiang Qing, a group using the "leftist" mistakes in the inside and outside of manufacturing a large number of miscarriages of justice, resulting in unprecedented serious consequences. After the October 1976 smashing of the "Gang of Four", due to the implementation of mistake Hua Guofeng adhere to the principle of "two whatevers", the vindication of the work can not be carried out smoothly. January 10, 1977, Deng Xiaoping to the central letter, that "we have to guide us for generations to come the whole Party, Army and people with accurate and complete Mao Zedong Thought", the victory to push forward the socialist cause . July 21 the same year, he was on the Third Plenum of the Party's Tenth speech, he stressed the need to completely and accurately grasp and use system of Mao Zedong Thought, adhere to the mass line and seeking truth from facts, pointed out that the "two whatevers" error. Deng Xiaoping's advice to the whole party set things right, the vindication of miscarriages of justice pointed out the direction in politics. In the organization, in December 1977, the CPC Central Committee Hu Yaobang was appointed Minister of the Central Organization Department, presided over the work of vindication. Central Organization Department and Party organizations at all levels, launched hundreds of thousands of cadres and the masses, concentrate its efforts on research, to open a new situation in the work of vindication. December 1978 Third Plenary Session of the CPC decided to remove center Error file on "Deng counter rightist overturn the wind" and the "Tiananmen incident" has been issued for the two wrong case and "February countercurrent" officially rehabilitated. At the same time reviewing and correcting erroneous conclusions past Peng, Tao Zhu, Bo Yibo, Yang Shangkun, who made the review and resolution of the problem merits and demerits of a number of major party's history of miscarriages of justice and some important leaders. This marks a comprehensive corrective seriously "Cultural Revolution" and former "leftist" mistakes began, the vindication of miscarriages of justice in full swing. To January 1980, the central and rehabilitated throughout the country a large number of miscarriages of justice. The total number has been rehabilitated up to 290 people. No filing review and get rehabilitated, much larger than this figure. All this work, to effective steps and measures to correct the "leftist" mistakes, to promote the stability and unity of the whole party, really mobilize the millions of people entire nation, reunification of the motherland, build enthusiasm for socialism, the lively the political situation began to take shape.