The invention discloses a precise dispensing system. The precise dispensing system comprises a PLC, an automatic clamping system, a dispensing controller, a dispensing head, a first temperature control meter and a second temperature control meter, wherein a temperature sensor probe of the first temperature control meter is arranged at a syringe of the dispensing head, and a temperature sensor probe of the second temperature control meter is arranged at a syringe needle of the syringe. According to the precise dispensing system disclosed by the invention, the dispensing controller is arranged, so that the temperature of solid sols of the dispensing head can be controlled; two temperature control meters are arranged, so that the temperature information of the solid sols at two positions can be fed back to the dispensing controller in a real time manner; the PCL is arranged, so that dispensing signals can be sent to the dispensing controller, and motion of parts in the dispensing head and the automatic clamping device can be controlled. Therefore, a sol dripping opening of the dispensing head can be aligned with the position of a product to be dispensed, and all parts operate in coordination; the precision of the dispensing process is guaranteed.