The mechanism underlying whisker growth has received significant research attention. However, the scientific basis for how whiskers grow into strips has yet to be elucidated. The mechanism for traditional whisker growth is not suitable for the growth of liquid-crystal system whiskers. Here, an extended anion coordination polyhedron (ACP) mechanism was proposed as a liquid-phase whisker growth mechanism. The traditional whisker growth mechanism cannot explain whisker growth in liquid-phase systems or whisker diversity, nor can it guide the artificial control of whisker growth. The extended ACP growth mechanism overcomes these problems and can be used to effectively guide the growth of artificial whiskers.