It depends on the admission regulations of each university. Some universities stipulate that you should bring your membership card and hand it in when you go through the admission formalities, while others will get it after the start of school.
If you lose your League membership card, you can apply for a new student with the party member relationship file or other documents that can prove party member's identity, and then apply for a new one when you are admitted to the university.
Extended data:
The university accepts the membership card, mainly because the students behind are ready to join the party. After joining the party, the members still retain their membership until they reach the age of 28 and leave the group (except those who have positions in the group); In other words, after joining the Party, members under the age of 28 need to accept the leadership of the Party and the management of the League.
However, there is no rule that you can't join the party unless you are a league member. As long as they meet the first requirement of party constitution, they can apply to join the Party.
Party constitution Chapter 1: party member: Article 1: "Workers, peasants, soldiers, intellectuals and other social class advanced elements in China who have reached the age of 18, recognize the party's program and articles of association, are willing to join a party organization and actively work in it, implement the party's resolutions, and pay party dues on time can apply to join the China Producer Party."
References:
* * * party member. com-Q&A of party member-The relationship between party member's identity and League membership card after joining the Party for 2 years.