This study takes theater culture as an entry point to explore its innovative application in the artistic design and functional adaptation of community public space. A spatial layout model is constructed through parametric design techniques and fractal curve theory, functional adaptability is verified through eye tracking and questionnaire survey, and structural equation modeling is utilized to reveal the enabling mechanism of theatrical culture genes on public space layout. The dimension of cultural communication satisfaction scored the highest in Study Area A, with a mean value of 3.91 points, and the mean values of the five dimension scores in descending order were as follows: cultural communication satisfaction>emotional perception>satisfaction with artistic expression>satisfaction with the type of public art>accessibility. The CMIN/DF value of the modified functional adaptation model is 1<1.2580.9, the RMSEA is 0.032<0.05, and the values of AGFI and NFI are all greater than 0.9, and each adaptation index meets the requirements, which indicates that the model fits well, and confirms that the 5 dimensions are the core dimensions of functional adaptation.