With the continuous deepening of my country's offshore oil exploration and development, more and more offshore oil and gas fields are about to reach their end of life, and the demand for disposal will increase. The disposal of oil and gas fields involves many fields, and relevant exploration and research are urgently needed. According to statistical analysis of the demand for abandonment of oil and gas production facilities in the Bohai Oilfield, the demand for future facility abandonment will show an upward trend year by year. The method of facility abandonment and the main content of the abandonment work are introduced, and the oil and gas wells, upper blocks, jackets, submarine pipes, and offshore oil and gas wells are described. The methods, technologies and impacts used in the process of cable disposal have summarized the principles of plan preparation, ocean restoration, cleaning of waste liquids, and pollution problems of abandoned wells that should be followed in the disposal of offshore oil and gas fields, which have good engineering practice guidance and reference.significance.