There were some researches about the market reaction to stock recommendation in the past few years. However, there is still no general consensusbecause these researches each showed different results.This thesis compares the empirical results with samples from different databases and periods, expecting to have a complete view on the topic.And it also compares the magnitude of market reactions from varieties of aspects.The comparings are based on different reporting institutions, releasing medias and words used in recommendation. Besides, this thesis also considers the abnormal trading volumeof institutional investors and retail investors when a report was disclosured. Finally, this article studys the informativeness of the analyst reports on macroeconomic and on the stock furtures.