直线l的方程是 ρcos(θ? π 6 )=3,即:ρcosθ× 3 2 +ρsinθ× 1 2 =3,它的直角坐标方程为: 3 x+y-6=0,点(m, π 6 )(m>0)的直角坐标为( 3 2 m, 1 2 m),所以点(m, π 6 )(m>0)到直线ρcos(θ? π 6 )=3的距离为:d= |2m?6| 1+3 =2?m=1或5.故答案为:1或5.