NOVELTY - Treating municipal solid wastes for producing end products e.g. recycled plastics, by a combination of mechanical, biological and thermal treatments, includes: (s1) sorting and pre-treating mixed municipal solid wastes; (s2) recycling plastic wastes; (s3) treating labile organic matters by a biodegradation method; (s4) treating persistent organic matters having a high heating value by a heat recovery-combined combustion method and processing into alternative fuels; and (s5) treating inorganic matters and post-combustion ashes by a solidification method.    USE - The process is useful for treating municipal solid wastes for producing end products including recycled plastics, organic fertilizers, fuel, energy and construction materials.    ADVANTAGE - The process provides treating and optimally recovering of the municipal solid wastes, thus reducing wastes to be buried.    DETAILED DESCRIPTION - Treating municipal solid wastes for producing end products including recycled plastics, organic fertilizers, fuel, energy and construction materials, by a combination of mechanical, biological and thermal treatments, includes: (s1) sorting and pre-treating mixed municipal solid wastes; (s2) recycling plastic wastes; (s3) treating labile organic matters by a biodegradation method; (s4) treating persistent organic matters having a high heating value by a heat recovery-combined combustion method and processing into alternative fuels; and (s5) treating inorganic matters and post-combustion ashes by a solidification method. The step (s1) comprises a manually and mechanically sorting step including screening, cutting, magnetic sifting and multi-staged wind sifting for forming four main material groups in consistence with the next treating processes, which comprises the mixture of plastic wastes, labile organic wastes, persistent organic wastes and inorganic wastes. The step (s1) is carried out in a line whose device streams are mounted in parallel, through which the number of device streams in the line is varied according to the designated power, while the devices are designed according to a specified power module standard. The step (s1) comprises: (s11) gathering wastes in a closed tunnel and feeding the wastes to the automatic line via an automatically controlled system of a crane and a clamshell bucket, manually sorting out the wastes on the line into special wastes, a persistent organic mixture and inorganic substances; (s12) sorting three size types with a two-size screen, in which the smallest size portion is mainly organic crumbles mixed with foreign substances subjected to a natural composting for use as a planting medium, the average size portion is mainly labile organic wastes which will be subjected to magnetic sifting and composted for producing fertilizers, the biggest size portion is manually sorted for separating plastic wastes prior to being gathered to be passed through the pre-cutting machine, thus a majority of foreign substances in the fertilizer product is eliminated, and it is possible to reduce load and increase service life for the cutting machine; and (s13) screening for sorting at the third stage according to two sizes, thus most of the persistent organic waste portion (the portion of bigger sizes) is separated from the to-be-composted organic mixture. The step (s2) comprises: (s21) cleaning the plastic using a wet method in combination with a dry method; (s22) treating cleaned plastic by a wet method; and (s23) treating cleaned plastic by a dry method. The step (s3) comprises adding a bio-composition, composting, stabilizing the composted product, demoisturizing, preparing a bioorganic fertilizer product, and preparing a mineral organic fertilizer product from the ground bioorganic fertilizer. The step (s4) is carried out by a burning method, in which the organic waste portion obtained from the sorting process is subjected to the cutting and screening machine, the portion with larger sizes is subjected to burning, an additive is added during the burning, heat recovered from the burning is used for different purposes, and exhaust is treated by a gas rinsing method. The step (s5) is carried out by a solidification method for producing different types of construction materials from the nontoxic inorganic wastes sorted from municipal solid wastes and ash recovered from the burning of municipal solid wastes in combination with other components.