Then I did my verification. And turns out it is not the truth.
baidu is dominant search engine in China. you can see that the search results do show Winnie-the-Pooh both in Chinese and in English.
http://image.baidu.com/search/index?tn=baiduimage&ps=1&ct=20...
I don't understand why some people say it's banned and others seem truly believe. simply a joke? you have your judgement.