Permutation statistics wm¯ and rlm are both arising from permutation tableaux. wm¯ was introduced by Chen and Zhou, which was proved equally distributed with the number of unrestricted rows of a permutation tableau. While rlm is shown by Nadeau equally distributed with the number of 1’s in the first row of a permutation tableau.In this paper, we investigate the joint distribution of wm¯ and rlm. Statistic (rlm, wm¯, rlmin, des, (321)) is shown equally distributed with (rlm, rlmin, wm¯, des, (321)) on Sn. Then the generating function of (rlm, wm¯) follows. An involution is constructed to explain the symmetric property of the generating function. Also, we study the triple statistic (wm¯, rlm, asc), which is shown to be equally distributed with (rlmax−1, rlmin, asc) as studied by Josuat-Vergès. The main method we adopt throughout the paper is constructing bijections based on a block decomposition of permutations.