The invention relates to a ZSM-12 molecular sieve with special crystal orientation as well as a preparation method thereof, and mainly solves the problem in the prior art that crystal orientation of the ZSM-12 molecular sieve cannot be controlled. According to the technical scheme, the ZSM-12 molecular sieve with special crystal orientation comprises SiO2/Al2O3 which is smaller than 360, three characteristic diffraction peaks appear at 2theta: A=7.6+/-0.2, B=20.9+/-0.2 and C=22.6+/-0.2 on an XRD (X-Ray Diffraction) spectrum of the ZSM-12 molecular sieve; the corresponding crystal faces are respectively (0, 0, 2), (3, 0, 0) and (0, 0, 6), the molecular sieve is preferably oriented in at least one of the three crystal face directions, and the relative intensity range is B/A=0.2-10 and C/A=0.1-10. The technical scheme well solves the technical problem, and the prepared molecular sieve can be used for various catalytic processes.