How Can I put the body mosfet contact in magic analog layout?

How about

psubstratepdiff

for nmos psubstrate or

nsubstratendiff

for pmos nwell.

Okay but which contact i need?

Try

psubstratepcontact

or

nsubstratencontact

.

Probably is not sufficiently beacuse drc report me some error … for example that local interconnection not overlap enough the contact