How import eclipse code style to intellij idea?

Try the Eclipse Code Formatter plugin. It's easy to configure and works well.

In the latest (2020) IntelliJ IDEA, if you have the "Eclipse interoperability" plugin installed, it's as simple as:

Settings > Editor > Code Style > Java > ⚙️ > Import Scheme > Eclipse XML Profile

Go to Eclipse's Preferences → Java → Code Style → Formatter and export the settings to an XML file via the Export All button (or Edit and then Export in dialog that opens up). Then open IntelliJ IDEA Settings → Code Style → Java, click Manage, and import that XML file by simply clicking Import.

As of IntelliJ IDEA 13, there is no possibility to import .settings/.prefs files directly.

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Edit: IntelliJ can import the following Eclipse properties:

• General
  • Right margin, Formatter on/off tags
  • Indentation
  • Indent size
  • Usage of ‘Tab’ character
  • Usage of Tab only for leading indentation (Smart Tabs)
  • Indent ‘case’ branches from ‘switch’
  • Indent class members
  • Keep comment at first column
• Spaces (Java)
  • Before/after comma (as set for Eclipse method declaration parameters)
  • After comma in type arguments
  • Within array initializer braces
  • Within brackets (in array reference)
  • Within parentheses of: annotation, ‘for’, ‘if’, ‘catch’ ’while’, ’switch’, method, empty method, parenthesized expression, method call, type cast, ‘synchronized’
  • Before parentheses of: ‘try’, ‘for’, ’while’, ‘switch’, method, ’if’, ‘catch’, method, method call, ‘synchronized’.
  • After type cast
  • Around unary, assignment operators (if it’s set for ‘before’ and ‘after’ in Eclipse).
  • Before opening brace of: array initializer, ‘switch’
  • Before ‘?’ in conditional expression
  • Space before/after ‘:’ in conditional expression
  • Space around binary operators (a single Eclipse setting is mapped to multiple IntelliJ IDEA’s settings)
• Blank lines
  • Around fields and methods
  • Before/after package
  • Before/after imports
  • Before method body
  • Keep blank lines in code (number of empty lines to preserve)
• Wrapping
  • New line before: closing brace in array initializer, ‘else’ in ‘if’ statement, ‘finally’ and ‘catch’ in ‘try’ statement, binary operator (if wrapped)
  • New line after: opening brace in array initializer Special ‘else if’ treatment (compact ‘else if’)
  • Keep simple blocks in one line
  • Keep control statements in one line
  • Alignment of: array initializer expressions, arguments in method declarations and calls, field declarations, extends list, assignments, binary expressions, ‘throws’ clause, resources in ‘try’.
  • Brace style for: code blocks, methods and classes
• JavaDoc
  • Enable JavaDoc formatting
  • Blank lines in JavaDoc