不需要。巧得很，克罗地亚政府今年临时发了个通知，从4/11/2011到10/31/2011这半年里，

吃中国护照的旅游者可无需签证进入克罗地亚，见这个通知的英文版如下：

IMPORTANT NOTICE:

Government of the Republic of Croatia, at its session on 10 March 2011, adopted the decision to temporarily facilitate the entry of aliens on tourist visits to the Republic of Croatia on the basis of valid Schengen residence permits and visas. Consequently, the following categories of aliens temporarily, from 1 April to 31 October 2011, do not require a visa:

1) Holders of valid Schengen residence permits ( covering entry and transit);
2) Nationals of the Republic of India and of the People's Republic of China, holders of valid Schengen visas, who collectively and in an organised manner visit the Republic of Croatia as tourists, if in possession of a valid travel health insurance and arriving from the Schengen Area, and
3) Nationals of the Hashemite Kingdom of Jordan, the State of Qatar, the State of Kuwait, the Sultanate of Oman and the United Arab Emirates who visit the Republic of Croatia as tourists, holders of valid Schengen visas, if in possession of a valid travel health insurance.