HEART RATE DETECTION MODULE AND ELECTRONIC DEVICE

A heart rate detection module (10) and an electronic device (20) are disclosed. The heart rate detection module (10) includes a substrate (11), and a light source (12), an optical receiver (13), a light blocking portion (14), and an optical film (15) that are disposed on the substrate (11). The light blocking portion (14) is disposed between the light source (12) and the optical receiver (13), so that the light source (12) is optically isolated from the optical receiver (13). The optical film (15) covers the light source (12), the light blocking portion (14), and the optical receiver (13), and a light filtering portion (150) is disposed on a side that is of the optical film (15) and that faces the substrate (11). During application, the light filtering portion (150) may filter interference light emitted to the optical receiver (13), so that interference light received by the optical receiver (13) is reduced, thereby increasing a signal-to-noise ratio of the heart rate detection module (10), to implement high heart rate detection accuracy of the electronic device (20).