Abstract: The roadside support with gangue zone has advantages of less support materials consumption and good stability.And its disadvantages involve large set-back amount，small support resistance at the beginning，big roof subsidence and great labor intensity in building gangue zone.For the fully mechanized coal face of compound roof and thin seam，it is the key of the god-side entry retaining technology to effectively control the surrounding rock of the tunnel，especially the compound roof at the section of roadside filling.Combining with the numerical simulation software and the situation of the entry retaining，the stress and deformation of the surrounding rock after roadside filling with gangues are analyzed，and the influence of different gangue zones width to the gob-side entry retaining is simulated.Based on this condition，the gob-side entry retaining technology with roadside support of 3 m gangue zone is successful.

Key words: Compound roof, Gob-side entry retaining, Roadside filling, Numerical simulation