  In this paper we examine thoroughly the Higgs boson to mu tau decay via
processes involving R parity violating couplings. By means of full one-loop
diagrammatic calculations, we found that even if known experimental
constraints, particularly including the stringent sub-eV neutrino mass bounds,
give strong restrictions on some of the R parity violating parameters, the
branching ratio could still achieve notable value in the admissible parameter
space. Hence, the flavor violating leptonic decay is of interest to future
experiments. We present here key results of our analysis. Based on the
analysis, we give some comments on h -> e mu and h -> e tau also.
