The invention discloses a prefabricated light transmitting concrete plate production mold and a manufacturing method thereof, and belongs to the technical field of concrete. The prefabricated light transmitting concrete plate production mold comprises a front pedal, a left side template, a right side template, a cross pull support, pull support fixed bolts, a back side U-shaped steel template, a front side U-shaped steel template, optical fiber holes, optical fibers, left side straight pull supports, combined bolts, straight pull support fixed bolts and right side straight pull supports; the front pedal includes a transverse inclined support, a bearing plate, an inclined rod and a vertical rod; the left side straight pull supports are fixed at the middle parts of the left sides of the front side U-shaped steel template and the back side U-shaped steel template through the straight pull support fixed bolts; multiple optical fibers are provided; each optical fiber penetrates through the optical fiber hole in the right side template and the optical fiber hole in the left side template in sequence; and the two ends of the optical fibers are respectively tensioned and fixed on hook rings in the left side straight pull supports and hook rings in the right side straight pull supports. The prefabricated light transmitting concrete plate production mold can realize industrial production of light transmitting concrete plates; and the manufacturing method is safe and reliable, and can obtain the prefabricated concrete plates with high light transmittance.