用反相乳液聚合方法合成了对水增稠性能好的交联聚丙烯酸胶乳。研究了交联剂的用量、引发剂的种类和用量、水相的ｐＨ值、共聚单体内烯酰胺（ＡＭ）的用量、单体浓度以及聚合温度等因素对胶乳增稠性能的影响。同时指出，通过控制水相的ｐＨ值和引入非离子型亲水性单体如ＡＭ的方法，可提高聚丙烯酸胶乳增稠剂的耐电解质能力。 Inverse emulsion polymerization was used to synthesize crosslinked polyacrylic latex with good water thickening property. The effects of such factors as the amount of crosslinking agent, the type and amount of initiator, the pH of aqueous phase, the amount of AM, the concentration of monomer and the polymerization temperature on the thickening properties of latex were studied. It is also pointed out that the electrolyte resistance of polyacrylate latex thickeners can be enhanced by controlling the pH of the aqueous phase and introducing non-ionic hydrophilic monomers such as AM.