We aim at determining the magnetic structures of some Yb1-xLuxMn6Sn6 (0.1 ≤ x ≤ 0.9) representatives with neutron powder diffraction experiments performed on the D1B high-flux diffractometer. We recently showed a ferromagnetic to antiferromagnetic transition of Mn sublattice in Yb1-xLuxMn6Sn6 compounds when intermediate valent Yb (υ ~ 2.6) is replaced by trivalent Lu. Neutron diffraction data are necessary to clarify magnetic structures, especially in the antiferromagnetic region of the magnetic phase diagram. Indeed, Mn sublattice could adopt helimagnetic and/or collinear antiferromagnetic structures as in the ternary LuMn6Sn6. This study will help understanding influence of the valence electron concentration on the Mn sublattice magnetic behavior.