The introduction of foreign workers was caused by the shortage of the basic labor supply in Taiwan manufacture industry in the late 1980s. As of today, the labors from the Southeast Asian countries have become the major working force, forming up the fast-growing and competitive “foreign-workers induction agency” industry. The purposes of this study are to identify the key factors of and to explore decision-making preferences of the manufacturing employers in selecting their agency partners. The research was conducted with online questionnaires designed based on the dimensions and variables concluded from the findings in the review of literatures and government legislation. The principal component analysis was employed to extract key selection factors with all employer samples as well as the 4 subgroups of the employer samples divided by the attributes formulated by employer’s firm size and industry types, followed by utilizing the co-plot method to present employer’s decision-making preferences. The empirical results surface out (1) the three key selection factors, including professional service, governmental evaluation records and company profile as well as employer’s decision-making preferences, and(2)the fact that the decision-making preferences vary by employer’s attributes. The findings provide references for the business strategies to the foreign-workers induction agencies, and offer advices to the government agencies when guiding and counseling both manufacturing employers and foreign-workers induction agencies in the near future under the new southbound policy.