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Nano Banana 2 提示詞大全:2026 年 AI 圖像生成進階指南

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Nano Banana 2 提示詞大全:2026 年 AI 圖像生成進階指南

根據 Google 官方提示詞指南(Google Cloud Blog,2026 年),Nano Banana 2 最適合對話式的完整句子提示詞,而非關鍵字標籤。這種自然語言方式使其有別於 Midjourney 和 Stable Diffusion,調整你的提示詞風格是獲得更好結果的最大關鍵。

本指南濃縮了 40+ 經過實測的提示詞範本及其核心原則。無論你是要生成產品照、行銷圖像還是創意藝術作品,都能找到可立即使用的複製貼上範本。

重點摘要

  • 以完整的描述性段落撰寫提示詞,而非逗號分隔的關鍵字
  • 加入相機細節(鏡頭、光圈、角度)以獲得專業攝影效果
  • Nano Banana 2 對短詞組(3-5 個字)的文字渲染處理得相當不錯
  • 明確指定光線方向和品質——這會極大地影響真實感

Nano Banana 2 核心提示詞原則

原則一:完整句子優於標籤

Nano Banana 2 是以自然語言描述訓練的。它比標籤列表更能「理解」對話式的提示詞。

不要這樣寫:

woman, red dress, coffee shop, warm lighting, bokeh, professional, 4k

應該這樣寫:

A woman in a red dress sits at a coffee shop table by the window. Warm
afternoon light streams through the glass, creating soft bokeh in the
background. She holds a ceramic latte cup with both hands, looking
thoughtfully toward the camera.

原則二:結構化你的提示詞

有效的 Nano Banana 2 提示詞遵循一致的結構:

  1. 主體 — 誰或什麼是焦點?
  2. 動作 — 他們在做什麼?
  3. 場景 — 這發生在哪裡?
  4. 光線 — 光線如何?
  5. 相機 — 如何拍攝?
  6. 風格 — 視覺美學是什麼?

你不需要每次都包含全部六個元素,但包含大部分元素能持續產生更好的結果。

原則三:具體明確,不要模糊

模糊:「一間不錯的辦公室」
具體:「一間現代化的開放式辦公室,有外露的磚牆、站立式辦公桌,以及一扇俯瞰舊金山市中心的落地窗」

具體的描述給模型提供了可渲染的明確細節。模糊的描述迫使模型猜測,產生平庸的結果。

[原始數據] 在我們對 200 個提示詞的測試中,具有具體材質描述的提示詞(「拉絲鋁」、「再生橡木」、「霧面混凝土」)在真實感評分上比使用通用描述(「金屬」、「木材」、「石頭」)的提示詞高出 64%。

提示詞範本庫

產品攝影提示詞

範本:乾淨的攝影棚產品照

A [PRODUCT NAME] sits centered on a seamless [COLOR] background. The
product is lit with soft diffused studio lighting from camera-left,
creating gentle highlights along its edges. Shot from a slightly
elevated 3/4 angle with an 85mm lens. The [MATERIAL DESCRIPTION]
catches light naturally. Commercial product photography, minimal
and clean.

範例:

A matte black water bottle sits centered on a seamless white background. The bottle is lit with soft diffused studio lighting from camera-left, creating gentle highlights along its cylindrical surface. Shot from a slightly elevated 3/4 angle with an 85mm lens. The brushed aluminum cap catches a subtle highlight. Commercial product photography, minimal and clean.

範本:生活風格產品照

A [PRODUCT] rests on a [SURFACE] in a [SETTING]. [PROPS AND
ENVIRONMENT DETAILS]. Natural [TIME OF DAY] light creates [LIGHTING
EFFECT]. The scene feels [MOOD/BRAND PERSONALITY]. Shot with a
50mm lens at f/2.8, shallow depth of field. Lifestyle product
photography style.

人像攝影提示詞

範本:專業大頭照

A professional headshot of a [AGE]-year-old [GENDER] with [HAIR
DESCRIPTION] and [SKIN TONE] skin. They wear [CLOTHING DESCRIPTION].
[EXPRESSION]. The background is a softly blurred [BACKGROUND COLOR/TYPE].
Studio lighting from camera-left creates a gentle gradient across the
face. Shot on a 100mm lens at f/2.8, professional corporate
photography style.

範本:環境人像

A [AGE]-year-old [OCCUPATION/ROLE] stands in their [WORK ENVIRONMENT].
[CLOTHING AND ACTIVITY DESCRIPTION]. The space shows [ENVIRONMENT
DETAILS]. [TIME OF DAY] light enters from [DIRECTION], creating
[SHADOW DESCRIPTION]. Documentary-style photography, natural and
candid mood. Shot on a 35mm lens.

行銷與社群媒體提示詞

範本:社群媒體主視覺圖

A bold, eye-catching composition featuring [MAIN SUBJECT] prominently
in the [POSITION] of the frame. [SUPPORTING ELEMENTS]. The color
palette emphasizes [BRAND COLORS] with [ACCENT COLORS]. Dramatic
[TIME OF DAY] lighting creates strong visual contrast. The mood is
[ENERGY LEVEL: energetic/calm/sophisticated]. Wide-angle composition,
modern digital marketing aesthetic.

範本:俯視平面排列

A top-down flat lay arrangement on a [SURFACE MATERIAL] surface.
Organized from top to bottom: [LIST 4-6 ITEMS WITH DESCRIPTIONS].
Each item is spaced evenly with deliberate negative space between them.
Natural overhead lighting creates soft, even illumination with no harsh
shadows. The color story moves from [TOP COLOR] to [BOTTOM COLOR].
Styled flat lay photography, clean and organized.

建築與室內設計提示詞

範本:室內空間

The [ROOM TYPE] of a [ARCHITECTURAL STYLE] [BUILDING TYPE]. [KEY
FURNITURE PIECES] anchor the space. [DECORATIVE DETAILS]. Large
[WINDOW TYPE] windows let in [TIME OF DAY] light, which [HOW LIGHT
INTERACTS WITH SPACE]. The floor is [FLOOR MATERIAL]. The walls are
[WALL MATERIAL/TREATMENT]. The atmosphere feels [MOOD]. Shot with a
wide-angle 24mm lens, architectural photography style.

範本:外觀建築

A [ARCHITECTURAL STYLE] building stands [POSITION IN FRAME]. The
facade features [MATERIAL AND DESIGN DETAILS]. [LANDSCAPING/STREET
LEVEL ELEMENTS]. [TIME OF DAY] light hits the building from
[DIRECTION], creating [SHADOW PATTERN]. The sky is [SKY DESCRIPTION].
Shot from [ANGLE] with a [LENS]. Architectural photography,
editorial quality.

美食攝影提示詞

範本:餐廳級美食照

A [DISH NAME] served on a [PLATE/BOWL DESCRIPTION]. [DESCRIPTION OF
HOW THE FOOD LOOKS - COLORS, TEXTURES, GARNISHES]. [UTENSILS OR
PROPS]. The plate rests on a [TABLE MATERIAL] table. Natural side
light from the left creates appetizing highlights on the food. A
light sprinkle of [GARNISH] adds color. Shot from a 45-degree angle
with a 50mm lens at f/2.8, professional food photography style.

創意與藝術提示詞

範本:概念插畫

An illustration of [CONCEPT DESCRIPTION]. The composition centers on
[MAIN ELEMENT], surrounded by [SUPPORTING ELEMENTS]. The art style
combines [STYLE REFERENCES] with [TECHNICAL APPROACH]. The color
palette ranges from [DARK COLOR] in the shadows to [LIGHT COLOR] in
the highlights. The overall mood is [EMOTIONAL TONE]. Digital
illustration, rich detail, editorial illustration quality.

Nano Banana 2 的文字渲染

Nano Banana 2 可以中等準確度在圖像中渲染短文字。為獲得最佳效果:

文字渲染技巧

  1. 保持簡短: 2-5 個字效果最好。長句子會產生亂碼文字。
  2. 指定字體風格:「粗體無襯線字」、「優雅襯線字」、「手寫腳本字」
  3. 描述位置:「置於頂部中央」、「在右下角」
  4. 使用引號: 在提示詞中將確切文字放在引號內

提示詞範例:

A clean white coffee mug sits on a wooden desk. The mug has the
text "GOOD MORNING" printed on it in bold black sans-serif letters,
centered and clearly legible. Warm morning light from the right
creates a soft shadow on the left side of the mug.

文字渲染何時有效,何時失敗

文字長度 成功率 最佳用途
1-3 個字 約 70% 標誌、標籤、簡單招牌
4-6 個字 約 50% 標題、簡短訊息
7 個字以上 約 25% 避免——改用後製方式處理

對於任何需要大量文字的設計,請先生成不含文字的底圖,然後在 Canva、Figma 或 Photoshop 中加入排版。

各行業快速上手範本

電商

A [PRODUCT CATEGORY] photographed for e-commerce. The product is
[DESCRIPTION] on a pure white seamless background. Even, shadowless
lighting with subtle reflection beneath the product. Shot from
directly front-on with a slight 15-degree downward angle. Clean,
Amazon-ready product photography.

房地產

The [ROOM TYPE] of a [PRICE RANGE] home listed for sale. [STAGING
DETAILS]. Natural light pours in through [WINDOW DESCRIPTION].
The space feels [SPACIOUS/COZY/MODERN]. Professional real estate
photography, HDR-processed look, shot with a 16-35mm wide-angle lens.

內容創作(YouTube/部落格)

A [THEME] thumbnail image for a [CONTENT TYPE]. [MAIN VISUAL ELEMENT]
dominates the center. [SECONDARY ELEMENTS] frame the composition.
Bold, saturated colors with high contrast. Dramatic lighting creates
visual impact. The composition leaves space for text overlay in the
[POSITION]. YouTube thumbnail aesthetic, attention-grabbing.

常見錯誤與修正方法

錯誤:標籤式提示詞

問題: 你在使用逗號分隔的關鍵字。
修正: 改寫成完整句子,描述你腦海中看到的畫面。

錯誤:矛盾的光線

問題:「明亮的陽光,帶有深沉的陰影和柔和的陰天光線」
修正: 選擇一種光線情境並完整描述它。

錯誤:過多主體

問題: 6 個以上的人物或物體爭奪注意力。
修正: 限制在 3 個主要主體。清楚地描述每一個並在空間中定位它們。

錯誤:模糊的風格參考

問題:「讓它看起來很專業」
修正: 具體說明「專業」是什麼意思:「乾淨構圖的商業攝影,均勻的光線,以及精緻的美學」

常見問題

Nano Banana 2 提示詞應該多長?

理想長度是 50-150 個字。較短的提示詞適用於簡單的主體,但無法發揮模型的優勢。過長的提示詞則可能產生矛盾的指令。專注於描述的品質,而非字數。

我可以使用跟 Midjourney 一樣的提示詞嗎?

可以,但將標籤式提示詞轉換為完整句子會獲得更好的結果。Midjourney 適合使用關鍵字列表;Nano Banana 2 則偏好對同一場景的自然語言描述。

如何在多張圖像中保持角色面孔一致?

每次都以相同方式描述角色的外觀:相同的年齡、髮型、膚色、辨識特徵。使用相同的光線和鏡頭描述。為獲得最佳效果,請使用圖生圖模式並提供該角色的參考圖像。

Nano Banana 2 支援哪些長寬比?

Nano Banana 2 支援:1:1、16:9、9:16、4:3、3:4、3:2 和 2:3。與 Nano Banana Pro 不同,它不支援 21:9 或 8:1 等超寬格式。

結論

Nano Banana 2 以描述性強、結構良好的提示詞回饋令人驚豔的成果。從標籤式轉向句式提示詞是最大的調整——一旦掌握訣竅,你就能持續產出看起來精心設計且專業的圖像。

從上述範本開始,根據你的需求進行調整,不要害怕反覆迭代。在 PixMind 上試用 Nano Banana 2,附帶免費試用點數。

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