A blood-analysis chip for analyzing level of a substance under test is disclosed. The blood-analysis chip includes a base having a surface. The base has a capacity, a blood cell-filtering space and a reaction space. The capacity forms a sample-loading opening on the surface of the base. The blood cell-filtering space has two ends interconnection with the capacity and the reaction space, respectively. A plurality of absorptive fibers is received in the blood cell-filtering space. A plurality of apertures is formed between the adjacent absorptive fibers. The reaction space has a first end and a second end opposite to the first end. The first end connects to the blood cell-filtering space, while the second end forms a color-developing opening on the surface of the base. An area of section of the first end is smaller than an area of section of the second end. A center of the section of the first end and a center of the section of the second end connects to form a central axis. Both the section of the first end and the section of the second end are perpendicular to the central axis. A plurality of absorptive fibers is received in the reaction space. A plurality of reaction reagent particles is absorbed on the plurality of absorptive fibers.一種血液檢驗試片,係用以分析血液所含有之待測物的含量,其包含:一基座,具有一表面,該基座內部包含一容置空間、一血球過濾空間及一反應空間;該容置空間於該基座之表面形成一樣品容置口;該血球過濾空間之相對二端分別連通該容置空間及該反應空間,該血球過濾空間內部設有數個吸水性纖維,相鄰之數個吸水性纖維之間形成孔隙;該反應空間具有相對之一第一端及一第二端,該第一端連通該血液過濾空間,該第二端於該基座之表面形成一顯色開口,該第一端之截面的面積係小於該第二端之截面的面積,該第一端之截面的中心點及該第二端之截面的中心點連接形成一中心軸線,且該第一端之截面及該第二端之截面均垂直該中心軸線,該反應空間內部設有數個吸水性纖維,該數個吸水性纖維上吸附數個反應試劑粒子。1‧‧‧基座11‧‧‧容置空間111‧‧‧樣品容置口12‧‧‧血球過濾空間121‧‧‧吸水性纖維13‧‧‧反應空間13a‧‧‧第一端13b‧‧‧第二端131‧‧‧顯色開口132‧‧‧吸水性纖維133‧‧‧集中段134‧‧‧擴散段A1‧‧‧截面積A2‧‧‧截面積L‧‧‧中心軸線S‧‧‧表面
