Using Fe(NO₃)₃·9H₂O, H₃PO₄, Na₂MoO₄·2H₂O, 3?aminomethylpyridine as raw materials, a complex 1 based on the hourglass phosphomolybdate modified with Fe^Ⅱ was successfully synthesized by hydrothermal synthesis method. The molecular formula is (C₆H₁₀N₂)₆{Fe[Mo₆O₁₂(OH)₃(PO₄)₂(H₂PO₄)₂]₂}·3.5H₂O. The single crystal X?ray diffraction infrared spectroscopy(FT?IR) powder X?ray diffraction(PXRD) and thermogravimetric analysis(TGA) were used to prove its structure and composition which was analyzed at the same time The results show that complex 1 has a three?dimensional supramolecular framework, which connected {Fe[P₄Mo {}_{\mathrm{6}}^{\mathrm{V}} O₃₁]₂} {}^{\mathrm{22}-} (denoted as {Fe(P₄Mo₆)₂}) and protonated 3?aminomethylpyridine by five hydrogen bond interactions of N(6)—H(6B) ···O(15) ，N(6)—

H(6A)···O(8)， N(2)—H(2C)···O(23)， N(2)—H(2B) ···O(19) and N(1)—H(1A) ···O(30). Besides, the electrochemical detection of furaltadone hydrochloride was further studied by using complex modified carbon paste electrode(1?CPE). The experimental results show that 1?CPE has good stability and high selectivity for furaltadone hydrochloride.