Abstract: Cultivated land fragmentation is one of the key factors hindering the development of high quality agriculture, and it is of great significance to construct a parcel-scale measurement system of cultivated land fragmentation and adopt differentiated governance strategies to promote the management of cultivated land fragmentation. This study took Hekou Town, Yunan County, a hilly and mountainous area, as an example. Through a theoretical review of the concept of cultivated land fragmentation and the definition of its connotation in this study, it incorporated natural characteristics, tenure characteristics, and cultivation characteristics of parcels, combined with questionnaire surveys and the related policies of high-standard farmland construction to construct a parcel-scale fragmentation measurement index system based on the “natural endowment degree, tenure dispersion degree, and cultivation accessibility degree”, and then calculated the three-dimensional composite index of parcel fragmentation through the TOPSIS model, explored the spatial aggregation relationship through the local spatial autocorrelation, and revealed the balance and differences in the evaluation results of each administrative village through the mean and coefficient of variation. Finally, the three-dimensional rubik's cube model was used to form the guidance program for classified consolidation.The results showed that: 1) In the dimension of natural endowment degree, the comprehensive evaluation level of parcels in the study area ranged from 0.219 to 0.716, with the majority falling into the lower and higher grades. In terms of spatial differentiation characteristics, the mean level and coefficient of variation of the comprehensive evaluation in each administrative village's parcels were relatively balanced. Parcels with superior natural endowment degree formed contiguous clusters in space, while the remaining parcels exhibited smaller clusters or lower levels of aggregation due to poorer natural endowment degree. In the dimension of tenure dispersion degree, the comprehensive evaluation level of parcels ranged from 0 to 0.902, with the majority falling into the lower and low grades. In terms of spatial differentiation characteristics, the mean level and coefficient of variation of the comprehensive evaluation in each administrative village's parcels were relatively low. Parcels with different comprehensive evaluation grades exhibited relatively homogeneous spatial distribution. In the dimension of cultivation accessibility degree, the comprehensive evaluation level of parcels ranged from 0.026 to 0.974, with the majority falling into the lower and higher grades. In terms of spatial differentiation characteristics, there were certain differences in the mean level and coefficient of variation of the comprehensive evaluation of parcels in each administrative village. Higher and high-grade parcels tended to cluster spatially due to denser, higher-grade road networks and greater parcel adjacency. Other parcels, however, were largely constrained by natural conditions, making it difficult to achieve high levels of parcel adjacency. 2) In terms of spatial correlation features, the natural endowment degree was dominated by high-high aggregation and low-low aggregation, the tenure dispersion degree was dominated by low-low aggregation, and the cultivation accessibility degree was dominated by high-high aggregation and low-low aggregation. 3) Combined with the three-dimensional rubik's cube model spatial combination and control constraints, the parcels were classified into high-quality conservation, endowment enhancement, tenure adjustment, facility improvement, comprehensive consolidation, and prohibited consolidation, and differentiated consolidation strategies were proposed. The research results provided a reference for the parcel consolidation of high-standard farmland construction in hilly and mountainous areas.