This study aims to determine and examine the significant influence of internal communication, work discipline, and employee loyalty on the performance of PT. Perkebunan Nusantara XII (Persero). This research is categorized as explanatory research. The population of this research is all field employees as many as 305 employees and the sample taken is 200 employees. The data analysis method used in this research is the Structural Equation model using PLS. The results of this study indicate that internal communication has a significant effect on the performance of the field employees of PT. Perkebunan Nusantara XII (Persero), work discipline has a significant effect on the performance of the field employees of PT. Perkebunan Nusantara XII (Persero), and employee loyalty have a significant effect on the performance of the field employees of PT. Perkebunan Nusantara XII (Persero).