Enforcement Rules of Employment Service Law Article 11

The term "those permitted to live with their lineal relatives with registered domestic residence in the Republic of China" as referred to in Subparagraph 3 of Paragraph 1 of Article 51 of the Act is defined as those to whom the competent authority in charge of the entry and exit administrative authorityissue residence permits on account of living with relatives. However, before get residence permits to live with their lineal relatives with registered domestic residence in the Republic of China, a foreigner who is the spouse of a national of the Republic of China with a registered permanent residence in the territory of the Republic of China and has been permitted to stay in accordance with the term as referred to in Article 9-1 of the Immigration Act , the engagement in work in the territory of the Republic of China should be conducted in accordance with Subparagraph 2 of Paragraph 1 of Article 48 of the Act.
中文原文 就業服務法施行細則第11條
本法第五十一條第一項第三款所稱經獲准與其在中華民國境內設有戶籍之直系血親共同生活者,指經入出國管理機關以依親為由許可居留者。
但獲准與在中華民國境內設有戶籍之直系血親共同生活前,已為中華民國國民之配偶而有第九條之一所定入出國及移民法相關規定情形者,其在中華民國境內從事工作,仍依本法第四十八條第一項第二款規定辦理。

English translation for reference only; the Chinese text prevails. Not legal advice.