The invention relates to an intelligent polycarboxylate superplasticizer reaction kettle, and relates to the technical field of chemical product production devices. The reaction kettle comprises a housing, a mixing device, a temperature control device used for adjusting the temperature in the housing, a titration device, a controller, and a water injector. According to the invention, miniaturization of a polycarboxylate superplasticizer preparation device is facilitated, and superplasticizer preparation efficiency of the device can be improved. The reaction kettle is suitable for miniaturized polycarboxylate superplasticizer preparation. With the mixing device, superplasticizer preparation agents in a mixing dish can be fully mixed. A plurality of mixing devices can be arranged in the housing, such that simultaneous preparation of small-amount superplasticizers can be realized. Therefore, superplasticizer preparation time can be reduced, superplasticizer mixing uniformity can be improved, and superplasticizer quality can be improved. With a traditional stirring manner, the superplasticizer cannot be uniformly mixed. According to the mixing device provided by the invention, the mixing dish is rotated, such that the defect is solved.