Sampler is designed according to the structure of cervical mouth anatomy , soft , and can collect enough specimens without operating mucosa; preservation solution has the advantage of strong compatibility, sterilization, and preservation; membrane is precious patented products produced by anionic membrane technology, with multi-level and multi-filter-design; film holes reaches to 70,000, readable cell diameter is 20 mm and cell distributes uniformly; the same specimen can be used to produce10 times. After being dealt by biological polymer, the slide surface has cationic, and cells can adheres to it tightly.