For a recollement
$$(\mathcal {A},\mathcal {B},\mathcal {C})$$
of abelian categories, we show that n-tilting (resp. n-cotilting) subcategories in
$$\mathcal {A}$$
and
$$\mathcal {C}$$
can be glued to get n-tilting (resp. n-cotilting) subcategories in
$$\mathcal {B}$$
under certain conditions.
