The invention discloses a protecting material for a fiber Bragg grating sensor and a production method of the protecting material. The protecting material contains the following raw materials: unsaturated polyester resin, quartz sand, basalt fibers, a curing agent and an accelerant. The material is taken as a protecting material and producing material of the fiber Bragg grating sensor, and the protecting material of the sensor is produced by virtue of an injection molding production method. According to the production method, a single resin-base composite material is utilized for replacing a traditional combined manner of multiple materials as the protecting material for the fiber Bragg grating sensor, so that strain transfer errors are effectively reduced; the protecting material has excellent corrosion resistance and chemical stability, so that the sensor has a relatively long service life in a hostile engineering environment; meanwhile, prepared protecting material injection molding liquid has moderate viscosity and relatively good fluidity, and the production of the sensor is finished by virtue of a one-time injection molding technique, so that the operation process is simple, the performance of a finished product is stable, and the production cost is substantially lowered; and the production method is applicable to large-scale industrial production.