This paper proposes a model of photography teaching literacy based on cross-cultural teaching by designing and implementing a photography curriculum based on “recording the fading colors of Suzhou” and combining it with cross-cultural teaching. Then, we set the gray correlation factor series, transformed the gray correlation factor series into a dimensionless pure quantity through mathematical transformation, calculated the correlation coefficients between the comparison series and the reference series, and applied the gray correlation analysis to analyze the intercultural photography teaching literacy index system. The results showed that teachers of different genders showed significant differences in intercultural photography teaching ability (F=2.774, p=0007<0.05) and no significant differences in intercultural photography teaching knowledge and intercultural photography teaching emotion. In terms of correlation, the correlation coefficient between research hard work and autonomous cooperation was 0.523 (**), and its correlation exists, indicating that teachers in colleges and universities at the prefecture level have a stronger awareness of the degree of correlation between research spirit and teaching spirit than those in colleges and universities at the county level. This study explores the good relationship between research literacy and photography teaching literacy so that it can be adapted to the development of teachers and students in the context of the new curriculum.