How Can i import plugin option?

Just pass the array as the second argument to update_option – WordPress will serialize the value before storing it in the database, and automatically unserialize it when you read it:

update_option( 'meow', array(
    'cats' => '2',
    'food' => array( 'tona', 'fish' ),
) );

$meow = get_option( 'meow' );

print_r( $meow );

// Array
// (
//     plugins => 2
//     [food] => Array
//         (
//             [0] => tona
//             [1] => fish
//         )
// )