To explore the intelligence of recurrent mania and its influencing factors. The Wechsler Intelligence Scale was used to test 150 cases of recurrent mania. The results showed that the IQ of recurrent mania was 92.56%, the verbal IQ was 93.87%, the operational IQ was 91.96, and 86.75% of the patients were in the normal range. It was concluded that the IQ of recurrent mania was in the normal range, and there was no significant difference between verbal IQ and operational IQ. High literacy was associated with high IQ, and the correlation between disease duration, age and IQ was small. There was no difference in IQ between the episodes and remission periods. Manic episodes showed high emotion, fast thinking association, high energy, and often gave people the feeling and impression of being too intelligent and super intelligent. And the present study found that their intelligence heat was still in the normal range, which was consistent with the study of Liu Wen gang et al. And there was no significant difference between the IQ of the seizure period and the remission period, suggesting that the manic episode itself has little effect on the patient’s IQ. Intelligence is a part of mental activity, and although manic episodes manifest as feeling particularly brainy, thinking particularly fast and feeling good about themselves, these clinical manifestations have no direct causal relationship with their own intelligence. The study in this paper found that the recurrent manic episodes have less influence on the intelligence of patients, and this result is in line with the common clinical manic episodes in which patients have good recovery of social function, do not lead to mental decline and have good prognosis. Furthermore, the higher the literacy level of manic episodes, the higher the IQ, which is consistent with the effect of literacy on the intelligence of normals.