A more descriptive and precise thread title will help cater to the right audience and get you more responses.
To edit your thread title, just click on the
button on the bottom right of your original post and then click the "Go Advanced" button below your message.
Have you also taken a look at MRoogle, since that question may have been asked several times?
Example: How to transfer photos from one iPhoto to another (iMac to MacBook Pro)?
How many photos are you talking about?
If it is the whole library, you could just copy the iPhoto Library file from Macintosh HD / Users / YOU / Photos / iPhoto on your iMac to your MacBook Pro.