Research already found that patients with autistic spectrum disorders lack of Prevotella intestinal type, then schizophrenia patients may also show the specific intestinal type, so investigators want to detect the gut metagenome of schizophrenia patients by high-throughput DNA sequencing to find specific intestinal type, so as to achieve the purpose of schizophrenia diagnosis. According to the detection of inflammatory factors in the blood, nerve growth factor in the cerebrospinal fluid, to find the mechanism of the gut-microbes-brain axis.