Result: 123 patients were enrolled, which showed that: The right general knowledge about self - care of ostomy was 60.2% (74/123 patients); Results of self-care practice of stoma was 61.0% (75/123 patients); Knowledge of right complications handling was 73.2% (90/123 patients); Right nutrition knowledge was 74.0% (91/123 patients); Knowledge of true lifestyle was 75.6% (93/123 patients); The right attitude of the patient was 63.4% (78/123 patients).