Ultraviolet solar blind communication with its excellent optical characteristics has been more and more applied in the optical system. Compared with the conventional communication systems, the advantages of ultraviolet solar band communication are simple structure, low false alarm rate, high sensitivity and strong concealment, etc. In order to satisfy the requirement of ultraviolet communication system and to improve the efficiency of signal acquisition, a high-performance ultraviolet filter film is required to ensure the system′s steadiness. Appropriate ultraviolet film material are selected according to the thin film theory. In the aspect of film design, the independent sensitivity and errors distribution are analyzed and amended to reduce the sensitivity of the film. In the meantime, the reverse test analysis is used to solve the problem of film thickness which is due to the equipment error and control error. Eventually, the average transmittance of the film is 86% at the band of 240~280 nm and the rejection ratio is less than 0.2% at the band of 290~360 nm. The film has passed the relevant environmental tests of national military standard.