The　functional　composition　approach　for　promoting　metal-organic　framework　(MOF)-based　photo-catalysis　has　usually　been　hampered　by　grain　incompatibility,　resulting　in　an　insufficient　contact　interface.　Herein,　spontaneously　polarized　tourmaline　(TM)　was　proposed　to　be　combined　with　MOFs　to　generate　a　polarization-induced　electric　field　on　a　micron-scale,　which　could　improve　HCHO　photocatalytic　degradation　performance.　Based　on　the　micron-scale　electrical　polarization　strategy,　facile　micron-interface　construction　in　TM-ZrO2@NU66　(NH2-UiO-66,　UiO　=　University　of　Oslo)　and　TM-TiO2@NM125　(NH2-MIL-125,　MIL　=　Materials　Institute　Lavoisier)　dramatically　improved　the　remnant　polarization　(2.8　and　2.4　times),　charge　transfer　rate　(3.8　and　5.9　times),　and　center　dot　OH/center　dot　O-2(-)/h(+)　formation.　Consequently,　two　TM@MOFs　exhibited　6-90　times　higher　formaldehyde　removal　rates　than　previously　reported　state-of-the-art　photocatalysts.　The　fabricated　composites　exhibited　a　high　mineralization　rate,　deep　formaldehyde　removal　(＞80　%　of　total　organic　carbon　(TOC)　removal　within　150　min),　and　outstanding　recycling　stability.　This　study　narrates　an　innovative　and　straightforward　method　for　creating　composites　based　on　MOFs,　significantly　reducing　the　challenges　associated　with　ensuring　MOF　compatibility　with　other　functional　materials.