本文分析了１２例鼻源性恶性肿瘤眶内蔓延的普通Ｘ线、眼用Ｂ超及ＣＴ的表现。人为ＣＴ能够正确判断眼眶病变的来源及整个病变侵犯的范围，基本上能够明确病变的性质。Ｘ线平片对眶内改变揭示较差，但能够发现副鼻窦密度增高、扩大及骨破坏等，对诊断能够提供重要线索。眼科高频Ｂ超检查能够发现眶内的异常改变，但对定性诊断特异性不高，且不能发现眶周结构改变，对判定眶内病变来源帮助不大。 This article analyzes the 12 cases of nasal malignant tumor orbital spread of the general X-ray, B-ultrasound and CT performance. Artificial CT can correctly determine the source of orbital lesions and the scope of the entire disease violations, basically able to clear the nature of the lesion. X-ray film showed poor orbital changes, but can find the paranasal sinus density increased, enlarged and bone destruction, the diagnosis can provide important clues. High-frequency ophthalmic B-ultrasound can detect abnormal changes in the orbital, but the specificity of qualitative diagnosis is not high, and can not find changes in periorbital structures, to determine the source of orbital lesions is not helpful.