1、济南注册公司http://www.jnyszc.com/介绍劳动合同由用人单位与劳动者协商一致，并经用人单位与劳动者在劳动合同文本上签字或者盖章生效。劳动合同文本由用人单位和劳动者各执一份。劳动合同依法订立即生效，具有法律约束力。除非当事人对劳动合同生效有特殊约定，如约定须经公证或鉴证方可生效的劳动合同，其生效时间开始于鉴证、公证手续办理完毕之日。
Ji'nan registered company introduces the labor contract by the employer and the worker of consensus, and by the employer and the employee on the text of the labor contract is signed or sealed by the entry into force. The unit and the laborer shall each hold one copy of the text of the labor contract. The labor contract is effective, legally binding. Unless the parties to the labor contract in force has a special agreement, such as fixed shall be notarized or authentication before the entry into force of the labor contract, the effect of time began in the attestation, notarization formalities completed date.
   
2、济南注册公司谈到无效劳动合同是指劳动合同虽然已经成立，但因违反了法律、行政法规的强制性规定而被确认为无效的劳动合同。
Ji'nan registered company about invalid labor contract refers to a labor contract has been set up, but due to violation of the mandatory provisions of law, administrative regulations and be recognized as invalid labor contract.
   
3、济南注册公司http://www.jnyszc.com/提到无效劳动合同，从订立时起就没有法律约束力。劳动合同部分无效，不影响其他部分效力的，其他部分仍然有效。劳动合同被确认无效，劳动者已付出劳动的，用人单位应当向劳动者支付劳动报酬。劳动报酬的数额，参照本单位相同或者相近岗位劳动者的劳动报酬确定。
Ji'nan registered company mentioned invalid labor contract, shall have no legal binding force from the time they are concluded. The labor contract is invalid in part, does not affect the validity of the other parts, the other parts remain valid. A labor contract is confirmed as invalid, the worker has worked for the employer, the employer shall pay labor remuneration to the laborer. The amount of labor remuneration shall be determined with reference to the labor remuneration, the same or similar position of this unit worker.