But be aware that you can't destructively edit MP3s in Logic nor can you apply fades to the Audio regions. As Logic realtime converts the MP3s it uses a lot of the CPU power of your machine. So it's always better to convert the MP3s to aiffs/wavs first and then import the Audio into Logic. In the Audio Bin just hit control+f to batch import Audio or right click/control click on any Audio track in your Arrange and select the Audio from the menue which pops up.

Thank you Tasos,i try.