How can I show the subcategories content on the parent category page?
One possibility: <?php $sub_cats = get_categories(‘parent=” . get_query_var(“cat’)); if( $sub_cats ) : foreach( $sub_cats as $sub_cat ) : $sub_query = new WP_Query( array( ‘category__in’ => array( $sub_cat->term_id ), ‘posts_per_page’ => -1) ); if ( $sub_query->have_posts() ) : while( $sub_query->have_posts() ) : $sub_query->the_post(); //your output// endwhile; endif; endforeach; endif; ?> http://codex.wordpress.org/Function_Reference/get_categories http://codex.wordpress.org/Class_Reference/WP_Query