An optocoupler device for receiving a load voltage larger than or equal to 5 KV includes a carrier, a supporting frame connected to the carrier, a light emitter and a light receiver spacedly mounted on the carrier, an electrical isolator at least partially disposed on the supporting frame, a translucent encapsulate, and an opaque encapsulate. The electrical isolator is translucent and has a dielectric strength larger than or equal to 50 KV/mm. A shortest light transmitting path between the light emitter and the light receiver passes through the electrical isolator. The supporting frame, the light emitter, the light receiver, and at least part of the electrical isolator are embedded in the translucent encapsulate, and the translucent encapsulate is embedded in the opaque encapsulate.