Multi-probe fluorescent sensing device

The invention relates to a multi-probe fluorescent sensing device. The multi-probe fluorescent sensing device comprises a first photoelectric detector, a first fluorescent sensing sheet, a second photoelectric detector, a second fluorescent sensing sheet, an LED (Light Emitting Diode) light source and a light source isolation plate, wherein the LED light source is a wideband light source with a certain divergence angle; the light source isolation plate is used for isolating a light beam emitted by the LED light source into a first detection zone and a second detection zone which are equal in interval or unequal in intervals; the first photoelectric detector and the first fluorescent sensing sheet are placed in the first detection zone; the second photoelectric detector and the second fluorescent sensing sheet are placed in the second detection zone; fluorescent sensing signals generated in the first detection zone and the second detection zone cannot influence each other. The multi-probe fluorescent sensing device has an innovation point that an LED light source with a certain divergence angle is divided into two optical radiation zones which are respectively served as light sources for the two fluorescent sensing sheets, so that two-point or multi-parameter fluorescent sensing and detection are performed by a single light source.