Abstract: In terms of the actual background of the research, the elementary and secondary selection expert groups are obtained successively by using both the stratified and double sampling of the sampling technique. The absolute difference of the ranking weight vectors of the secondary selection expert group is calculated on the principle of rank preservation, and the unanimous opinions of the expert groups are verified based on the prescribed threshold, to obtain the final expert group and improve the group's evaluation. Taking prefecture-level cities as the research object, the model of hierarchical evaluation on life satisfaction of urban settled farmers is constructed with the consideration of the availability of data. The sample data is collected in Shangluo city, the subjective-objective weight and combined weights are gained by improving the group's evaluation and the entropy weight methods respectively. The index and comprehensive satisfaction values are calculated by using the fuzzy comprehensive evaluation. The results show that the improved group's hierarchical analytic weights and the combined weights have a high ranking consistency. The settled farmers in Shangluo city have the general and basic life satisfaction, providing a reference for the urbanization of the prefecture-level city.

Key words: group evaluation, analytic hierarchy process, double sampling, urban settled farmers, life satisfaction