The Qing Dynasty Xiaobaijiao(Small White Reef) I shipwreck, which was fully excavated in 2014, is located in the sea near Yushan island, Shipu Town, Xiangshan County of Ningbo, Zhejiang Province. Because of its long burial period underwater, the remaining hull has suffered from various sorts of deterioration. There is an urgent need for conservation. Through comprehensive survey of the structural parts and the analysis of sample (tree species, moisture content, morphology, chemical composition, soluble salts and microorganism), It is known that most of the remaining hull is in good condition; some structural parts are severely degraded and show different types of damage. The analysis and evaluation work described here provides abasis for subsequent conservation treatments.