A novel material boron carbide high polymeric fiber fabricated from the following parts of raw materials by weight: 50-60 parts of boron carbide, 150-193 parts of high polymeric ethylene emulsion with a concentration 40%-50%, 116 parts of hydrochloric acid with a concentration 37%, 3-5 parts of antioxidant, and 7 parts of catalyst, and fabricated in a 2500-2800° C. high-temperature high-pressure furnace and then in a high temperature-resistant spinning furnace. The novel material boron carbide high polymeric fiber produced according to the present invention exhibits performances such as extremely good resistance against high temperature and low temperature, super anti-acid and anti-base performance, excellent extensibility, wear resistance and anti-impact capability, and resistance against ultraviolet and the like. The boron carbide high polymeric fiber may be used in fields such as firearms manufacture, maritime rescue, fire protection and fire fight, anti-bullet and anti-explosion armor, biochemical nuclear industry treatment, and may be extensively applied to civil field, aerospace, military fairs and national defense. The material is recyclable and pollution-free.