介绍了直接沉淀法、EDTA络合法、超声沉淀法、微反应器法、表面活性剂法、绿色合成法等几种常见的制备硫酸钡方法，总结了各种方法的优缺点，归纳了在制备过程中团聚现象严重、粒径大且形貌不规则等问题。研究趋势是完善现有的生产工艺，提高产品质量，降低生产过程的能耗，实现大规模生产。阐述了硫酸钡在涂料、塑料等方面的应用，在应用方面硫酸钡加入聚合物合成复合材料是目前的研究热点，其中粒径小、形貌规整的硫酸钡是复合材料获得优良性质的关键。最后对硫酸钡各种制备方法的机理及工艺进行分析，提出每种制备方法存在的问题及改进的方法，指出未来硫酸钡制备和应用的发展方向。

This paper introduces several common preparation methods for barium sulfate,such as direct precipitation method,EDTA complex method,ultrasonic-assisted precipitation method,microreactor method,surfactant method and green synthesis method,and discusses the advantages and disadvantages of various preparation methods.Common problems happened in the preparation process,such as serious agglomeration phenomenon,larger particle diameter and irregular morphology,are concluded.Current research trend tends to improve the existing production process,raise product quality,reduce energy consumption during the production and achieve mass production.In addition,this paper describes the applications of barium sulfate in coatings,plastics etc.In the applications,the synthesis of composite material by adding barium sulfate into polymer is a hot topic.It is pointed out that barium sulfate with small particle size and regular morphology is the key for composite material to obtain excellent properties.Finally,this paper analyzes the mechanism and process of various preparation methods for barium sulfate,proposes the problems and concerning improvement methods for each method,and gives the development direction about preparation and application of barium sulfate in the future.