A protective lens for people with presbyopia is revealed. The protection lens includes a plano lens area and a presbyopic lens area. Both the plano lens area and the presbyopic lens area are produced by injection molding which is performed by an injection molding machine with a single material outlet. The presbyopic lens area is defined in and connected to the plano lens area. There is no overlap between the plano lens area and the presbyopic lens area. The plano lens area and the presbyopic lens area are connected directly without any medium therebetween. The presbyopic lens area is a circular area with a diameter of 3-5 centimeter. The presbyopic lens area is just corresponding to eyes on peoples face after mounted to an eyeglass frame. Thereby the protective lens not only protects peoples eyes during working but also allows people with presbyopia see close objects clearly.
