The utility model relates to a squint oblique position testing device, which comprises a base, a light transmitting unit and a light emitting unit.The reflectance of the light transmitting unit to the visible light is 3-40%, and includes a first side facing a subject and a second side facing a subject. The first side and the second side can be used for light in and out.The light-emitting unit includes a light-emitting member which can be driven to project light to the first side.When the light-emitting part is driven, the light intensity of the light-emitting part reflected by the light-emitting unit received by the subject is larger, the light intensity emitted from the first side through the light-emitting unit received by the subject is smaller, so that the subject can not perspective the light-emitting unit, and the detector can perspective the light-emitting unit for easy and simple detection, and can effectively improve the detection accuracy Accuracy.一種斜視斜位測試裝置，包含一基座、一透光單元及一發光單元。該透光單元對可見光的反射率為3~40%，並包括一個面向一受測者的第一側面，及一個面向一檢測者的第二側面，該第一側面與該第二側面可供光線進出。該發光單元包括一可被驅動而朝該第一側面投射光線的發光件。當該發光件被驅動時，該受測者接收到該透光單元的反射該發光件的光強度較大，該受測者接收到通過該透光單元而由該第一側面射出的光強度較小，進而使該受測者無法透視該透光單元，而該檢測者可透視該透光單元以輕鬆簡便地進行檢測，並能有效提高檢測準確度。
