Determining method for number of on-orbit working times of pressure electromagnetic valve

The invention provides a determining method for the number of the on-orbit working times of a pressure electromagnetic valve. The determining method comprises the steps that the gas pressure in a high-pressure gas source (6) is divided into different pressure values from the life beginning pressure to the life end pressure according to a certain gradient; under the divided pressure values, the number of the starting times of the pressure control electromagnetic valve (1) in a pressure cycle are obtained; and according to the gas mass consumed between every two adjacent pressure values, the total working period of the pressure control electromagnetic valve (1) is calculated, and therefore the number of the starting times of the pressure control electromagnetic valve (1) is precisely evaluated, evaluation efficiency of the number of the working times of the pressure electromagnetic valve is remarkable improved, and the accuracy rate of the number of the working times of the pressure electromagnetic valve is rem