In　this　paper,　a　new　technique　for　camera　calibration　based　on　planar　geometry　feature　is　proposed.　It　only　requires　three　views　from　the　newly　designed　planar　calibration　pattern,　which　is　a　square　tessellated　model　plane　with　the　black-and-white　alternate　square　grids,　then　all　the　five　intrinsic　parameters　can　be　recovered　linearly.　Our　calibration　method　needs　neither　any　geometric　measurements　on　the　model　plane,　nor　any　matching　information　between　the　model　plane　and　the　image　plane,　and　avoids　the　errors　caused　by　the　pick-up　of　irregular　geometry　feature　from　the　image.　It　greatly　decreases　the　system　setup　costs　and　simplifies　image　feature　extraction　works.　Hence　the　calibration　process　is　easily　performed　for　the　user.　Experimental　results　on　simulated　data　and　real　data　show　the　feasibility　of　the　proposed　technique.(1).