PROBLEM TO BE SOLVED: To provide a measuring sensor package and a measuring sensor capable of measuring a blood flow positioned deep under a skin.SOLUTION: A measuring sensor package 1 comprises: a base substance 2 including a first accommodation recess 20a having a first mounting portion 20c for mounting a light emitting element thereon, and a second accommodation recess 20b having a second mounting portion 20d for mounting a light receiving element thereon； a lid 3； and a metal thin layer 4 forming a diaphragm hole 4a therein. The diaphragm hole 4a, viewed from above, is formed in such a way that a distance between a center of the second mounting portion 20d and a first edge 4b of the diaphragm hole 4a, which is closest to a center of the first mounting portion 20c, is shorter than a distance between the center of the second mounting portion 20d and a second edge 4c of the diaphragm hole 4a, which is farthest from the center of the first mounting portion 20c, the distances being along a line between the center of the first mounting portion 20c and the center of the second mounting portion 20d.SELECTED DRAWING: Figure 3【課題】 皮膚下の深い箇所の血流が計測可能な計測センサ用パッケージおよび計測センサを提供する。【解決手段】 計測センサ用パッケージ１は、発光素子が載置される第１載置部２０ｃを有する第１収容凹部２０ａおよび受光素子が載置される第２載置部２０ｄを有する第２収容凹部２０ｂを含む基体２と、蓋体３と、絞り孔４ａが形成された金属薄層４とを含む。絞り孔４ａは、平面透視したときに、第１載置部２０ｃの図心と第２載置部２０ｄの図心とを結ぶ方向において、第２載置部２０ｄの図心と、絞り孔４ａの、第１載置部２０ｃの図心に最も近接した第１縁部４ｂとの距離が、第２載置部２０ｄの図心と、絞り孔４ａの、第１載置部２０ｃの図心から最も離間した第２縁部４ｃとの距離よりも小さくなるように形成される。【選択図】 図３
