Solid crystalline porous metal organic framework with modified surface comprising three-dimensional units (I), is new, where the modified surface comprises at least an organic surface agent. Solid crystalline porous metal organic framework with modified surface comprising three-dimensional units of formula (M mO kX lL p) (I), is new, where the modified surface comprises at least an organic surface agent. M : metallic ion comprising Fe 2+>；, Fe 3+>；, Zn 2+>；, Ti 3+>；, Ti 4+>；, Zr 2+>；, Zr 4+>；, Ca 2+>；, Cu 2+>；, Gd 3+>；, Mg 2+>；, Mn 2+>；, Mn 3+>；, Mn 4+>；or Si 4+>；； m, k, l, p : >；= 0； X : ligand comprising OH ->；, Cl ->；, F ->；, I ->；, Br ->；, SO 4 2->；, NO 3 ->；, ClO 4 ->；, PF 6 ->；, R 1>；-(COO) n ->；, R 1>；-(SO 3) n ->；or R 1>；-(PO 3) n ->；； R 1>； : H or 1-8C alkyl； n : 1-6； L : spacer ligand comprising radical R comprising q groups A； q : 1-6； A : carboxylate (asterisk-C(=O(a1)-O(a1))), phosphate (asterisk-P(=O(a1)(ORA1)-O(a1))), sulfonate (asterisk-S(=O(a1)(=O)-O(a1))), amine (asterisk-N(a1)(RA1)-(RA2)), imine (asterisk-C(RA1)=N(a1)-(RA2)), amide (asterisk-C=O(a1)-N(a1)(RA1)-(RA2)), carboxyamide (asterisk-C=O(a1)-NH 2(a1)), pyridine of formula (i), pyridine oxide of formula (ii) or imidazole of formula (iii)； asterisk : attachment point of group A with the radical R； a1 : attachment point of group A with the metallic ion； RA1, RA2 : H, 1-12C alkyl, 2-12C alkene, 2-12C alkyne (optionally substituted), mono- or poly-cyclic aryl comprising 6-50C (optionally branched and/or branched)； R : 1-12C alkyl, 2-12C alkene, 2-12C alkyne, mono- or poly-cyclic aryl (optionally fused) comprising 6-50C, mono- or poly-cyclic heteroaryl (optionally fused) comprising 1-50C, organic radical comprising a metallic element comprising ferrocene, porphyrin, phthalocyanine or schiff base (RX1RX2-C=N-RX3) (all optionally substituted by one or more R 2>；groups comprising 1-10C alkyl, 2-10C alkene, 2-10C alkyne, 3-10C cycloalk
