To obtain the carbon quantum dots doped silica nanotubes ,firstly organosilica nanotubes were formed through the hy‐drolysis and crystallization of the organosilane precursor using commercially available P123 as surfactant .Then the carbon doped silica nanotubes were fabricated after carbonization in N2 atmosphere .The nanotubes were investigated by the field emission transmission electronic microscope (TEM) ,nitrogen absorption/desorption isotherm (BET) ,thermogravimetry (TG) ,Raman spectrum and photoluminescense spectrum .The results show that carbon‐doped silica nanotubes with mesoporous tubular struc‐tures were successfully prepared .Finally ,HF was used to dissolve silica and the remaining carbon was characterized by high‐res‐olution TEM and photoluminescence spectrum (PL spectrum) .The clear crystalline fringes as well as favorable photolumines‐cense effect of the about 2‐4 nm carbon nanoparticles could be observed ,which is suitable for expressing the characteristics of the carbon quantum dots ,demonstrating that carbon quantum dots are doped in the nanotubes .%为了得到掺杂碳量子点的二氧化硅纳米管，首先将有机硅烷前驱体在软模板剂P123作用下通过水解、晶化过程合成形貌、结构清晰的有机氧化硅纳米管，再在高温下对其进行碳化，即可得到掺杂碳的二氧化硅纳米管。采用场发射透射电子显微镜（TEM）、氮气吸附脱附等温线（BET）、热重（TG）、拉曼光谱（Raman spectrum）和荧光光谱（photoluminescence spectrum）等表征手段对掺杂碳的二氧化硅纳米管的结构与特性进行表征、分析。结果表明，通过高温碳化，制备了具有介孔管状结构的掺杂碳的二氧化硅纳米管。最后用氢氟酸处理除去二氧化硅，发现剩余物为大小约2～4 nm的碳纳米颗粒，该颗粒具有清晰的晶格条纹和荧光发光性能，证明了合成的纳米管中的碳为碳量子点。
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