The utility model discloses a preform for a panda polarization maintaining optical fiber, and relates to the technical field of preforms. The mold comprises a single-mold prefabricated rod, one end surface of the single-mode preform is fixedly connected with a solid quartz rod; a handle is fixedly connected to the other end surface of the single-mold preform; rotary brackets are rotationally connected to the peripheral side surfaces of the solid quartz rod and the handle; one surface of the rotating bracket is slidably connected with a plurality of moving shafts; one end of each moving shaft is fixedly connected with a fixing piece; one surface of the fixing piece is fixedly connected with a fixing plate and a diffuse emission plate respectively; one surface of the fixed plate is fixedly connected with a reflector; according to the utility model, through the mutual cooperation of the laser lamp, the reflecting mirror and the diffuse reflection plate, the preform can be positioned before heating and wire drawing, the misalignment of the axis directions of the handle, the single-mode preform and the solid quartz rod is prevented, the wire drawing precision is improved, and the preform wire drawing quality is improved.