  We perform a comprehensive and systematic analysis of the SUSY flavor
structure of generic 5D supergravity models on $S^1/Z_2$ with multiple
$Z_2$-odd vector multiplets that generate multiple moduli. The SUSY flavor
problem can be avoided due to contact terms in the 4D effective K\"ahler
potential peculiar to the multi-moduli case. A detailed phenomenological
analysis is provided based on an illustrative model.
