The present invention relates to a method of screening for modulator of chaperonin that is involved in protein aggregation inducing neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and Huntington's disease, use of the chaperonin modulator screened by the method for prevention and treatment of neurodegenerative diseases. According to the present invention, novel negative chaperonin modulator is provided, and chaperonin modulator may be more rapidly and conveniently screened with the negative modulator as a target. Furthermore, by using the screened material, neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and Huntington's disease may be effectively prevented or treated without concern for cell death due to autophagy, which is the existing method of removing protein aggregate.
