本文对200例精神分裂症患者的遗传因素与遗传方式作了研究。分析了索引病例的家族遗传史、家族成员的精神疾患分类、各级亲族的患病率及各种环境因素的作用。认为遗传因素在精神分裂症的病因中具有重要意义,而环境因素对精神分裂症的发病亦起着不可忽视的作用。同时,通过统计分析,指出精神分裂症的遗传方式为多基因遗传,其加权平均遗传率为60.46％。 In this paper, 200 cases of schizophrenia in patients with genetic factors and genetic methods were studied. Analyzed the family history of the index cases, the classification of mental disorders of family members, the prevalence of kinship at all levels and the role of various environmental factors. It is considered that genetic factors play an important role in the etiology of schizophrenia, and environmental factors play an important role in the pathogenesis of schizophrenia. At the same time, through statistical analysis, pointed out that the genetic mode of schizophrenia is polygenic, the weighted average heritability was 60.46%.