A device for blood typing is disclosed, comprising: a first substrate having a first through hole and a second through hole a second substrate disposed corresponding to the first substrate, a plurality of channels disposed on the second substrate, the channels including a filter area and optionally including a flow area and a mixing area, the filter area including a coloring part and a slit part and optionally comprising a third substrate disposed between the first substrate and the second substrate, a plurality of additional channels disposed on the third substrate, and the additional channels including the flow area and the mixing area wherein the first through hole is sequentially connected to the flow area, the mixing area, the coloring part of the filter area, the slit part of the filter area, and the second through hole, therefore to form a flow path.本發明係關於一種血型檢測裝置,包括:一第一基板,具有一第一通孔及一第二通孔;一第二基板,係與該第一基板相對設置,該第二基板具有複數個凹槽,該些凹槽包含一過濾區且選擇性包含一流道區及一混合區,該過濾區包含一呈色部及一狹縫部;以及選擇性包括一第三基板,位於該第一基板及該第二基板之間,該第三基板具有一第三通孔及複數個額外凹槽,且該些額外凹槽包含該流道區及該混合區;其中,該第一通孔依序連接該流道區、該混合區、該過濾區之該呈色部、該過濾區之該狹縫部、以及該第二通孔,形成一流通路徑。1‧‧‧第一基板2‧‧‧第二基板21‧‧‧表面11‧‧‧第一通孔12‧‧‧第二通孔211,212,213,214,215‧‧‧凹槽31‧‧‧流道區32‧‧‧混合區33‧‧‧過濾區331‧‧‧呈色部332‧‧‧狹縫部
