凡身心健康，品德良好，願師法基督度更成全的生活，並願為華人服務而獻身的天主教單身男青年，都在歡迎之列。高中或大專畢業後至少工作一年者，均可申請望會。經一年時間望會，即可開始初學生活 —- 修會之基本神修訓練；一年後矢發貞潔，神貧和服從三聖願。若其志趣為作輔理修士者，經三年專業再培訓，學成便可投入輔理傳教工作。若其志為司鐸者，則需攻讀哲學、神學及其他有關學科至少七年，畢業後晉升為司鐸。
Requirements and Formation of Candidates
The Order welcomes healthy, single Catholic young men who are willing to imitate the life of Christ and to serve the Chinese community. Those who have completed high school education (in Canada it will be Grade 12) or higher, and with at least one year work experience may join the one year Postulancy followed by another year Novitiate. At the end of the Novitiate, candidates take religious vows of poverty, chastity and obedience. Subsequently, training for the brotherhood continues for another three years. Members of the Order who choose priesthood continue with philosophy and theological studies for at least seven years.
As the Congregation has a special commitment to evangelize people of the rich and ancient Chinese cultural heritage, only those who are willing to accept this commitment will become candidates. CDD places much emphasis on education and cultural activities as the means to evangelization. Therefore, CDD spends their resources on the development of their candidates in these areas. It also provides university education for those aspiring for further pursuit. It is hoped that with all the training and formation, candidates will be able to serve efficiently in our Lord’s vineyard and become Christ’s useful instruments.