Developing novel photochromic complexes based on dithienylethene is highly desirable for potential application in the fields of photoresponsive optoelectronics. In this contribution, four novel dithienylethene-bridged gold(I) isocyanide complexes 1a-1d have been designed and prepared by appending alkynyl-gold(I)-isocyanide triads at the termini of dithienylethene unit. They were fully characterized and confirmed by 1H NMR, 13C NMR, and HRMS (MALDI). Moreover, investigation on photochromic properties indicated that these complexes had good photo...