How do you say love mom in French?

Answer 1

From your question it is unclear whether you mean "Love Mom" in the context of a command (i.e. Love Mom, or you can never come home) or "Love, Mom" in the context of a signature (i.e. I hope everything works out well. Love, Mom.)

In the former example, the translation would depend on who is being commanded (tu or vous) and could be "Aimez maman!" or "Aime maman!"

In the latter example, the translation would be: "Avec Amour, Maman."

Answer 2

maman aime