Abstract: In recent years，driven by purchase subsidy policy of agricultural machinery，maize harvester industry has achieved great development.At present，maize harvester industry has been in a new stage of market depth adjustment，industrial innovation and transformation，and product upgrading.Number and regional distribution of maize harvester manufacturer were introduced，and maize harvester market was analyzed and prospected.Types and characteristics of maize harvester in market and standard system of maize harvester were summarized.According to statistical analysis of maize harvester product quality in national supervision and spot check，and combined with quality problems in process of practical operation，main reasons of quality problems were obtained and some targeted suggestions were put forward for maize harvester industry development.