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当事人在向法院提起诉讼时，对自己提出的主张，负有提供证据证明其真实性的责任。如果对自己所提的主张不实施举证或证据材料无法证实其主张的，将承担不利的诉讼后果，本文由小编在本文为您详细介绍涉及合同纠纷应搜集的证据。

在起诉第一审经济合同纠纷案件时，须提供下列一般证明、证据：

(1)企业法人、个人合伙、个体工商户的资格证明(营业执照原件，如是复制件，须与原件核对并加注明后，将原件退还)，开户银行和帐号。起诉状上的原、被告名称，须与营业执照、合同章相符合，如不一致或被告主体已变更、合并、关闭，需加以说明，并提供被告现在的准确所在地。

(2)法人的法定代表人、委托代理人的身份证明，授权委托书必须写明代理事项和代理权限。

(3)合同及与合同有关的文书、电报、信函(包括信封)、图表；变更、补充合同的协议、合同和其他附件，合同签订地及其证明材料。应提供原件，复制件须经过核对。

(4)送货、提货、托运、运输、验收、发票等凭证。

(5)货款、工程款、运输费、保管费、租赁费、转让费、劳务费、酬金等结算凭证和有关财务帐目的复印件。

(6)要求赔偿损失的依据及有关证明。

(7)要求支付违约金的依据、计算办法及有关证明。

(8)起诉前自行协商或通过有关部门处理的有关凭证。

(9)其他与诉讼有关的依据。

除提供一般证明、证据外，还须按照诉讼请求内容，提供其他必要证据：

(1)建设、建筑工程承包合同纠纷，须提供：国家批准的投资计划、计划任务书、工程承包单位营业执照的原件(如复制件，须与原件核对无误，并加注明后，将原件退还)、技术级别证书，建筑许可证、工程决算书及其审核意见书和工程验收报告等。

(2)质量纠纷，须提供：质量检验的鉴定报告，如有产品封样验收规定的则应有产品封样的日期、方式等说明和有关实物。

(3)技术合同纠纷，须提供：与合同有关的技术资料，可行性论证、技术评价报告、项目任务书与计划书，技术标准与规范，原始设计与工艺文件以及图纸、表格、数据照片等。

(4)商标侵权纠纷，须提供：注册商标的文字、图形和核准日期；假冒产品的实物、书证；受损害情况和经济数额的计算依据、证据等。

(5)专利侵权纠纷，须提供：专利证书、被侵权的实物、书证，专利产品与侵权产品异同的具体说明，受损害情况和经济数额的计算依据、证据等。

(6)涉外经济合同纠纷，须提供：公司章程、商业、税务登记证件、发票、货物提单、装运单。所提供的证据材料，如是港澳地区的，须经过公证；如是外国的，须经过公证和我驻外使、领馆的认证。

When filing a lawsuit with the court, the parties have the responsibility to provide evidence to prove the authenticity of their claims. If one fails to provide evidence or the evidence cannot prove their claims, they will bear adverse litigation consequences. In this article, the editor will provide a detailed introduction to the evidence that should be collected in case of contract disputes.

When suing a first instance economic contract dispute case, the following general proofs and evidence must be provided:

(1) Qualification certificates for corporate legal persons, individual partnerships, and individual industrial and commercial households (original business license, if duplicate, must be verified with the original and marked before returning the original), opening bank and account number. The names of the plaintiff and defendant on the complaint must match the business license and contract seal. If there is any inconsistency or if the defendant has changed, merged, or closed, it is necessary to explain and provide the accurate location of the defendant.

(2) The identification documents of the legal representative and authorized agent of the legal person, as well as the authorization letter, must specify the agency matters and authority.

(3) Contracts and related documents, telegrams, letters (including envelopes), and charts; Agreements, contracts, and other attachments for amending and supplementing contracts, as well as the place of contract signing and its supporting documents. Original documents should be provided, and copies must be verified.

(4) Proof of delivery, pick-up, consignment, transportation, acceptance, invoice, etc.

(5) Copies of settlement vouchers and relevant financial accounts for payment for goods, engineering, transportation, storage, leasing, transfer, labor, remuneration, etc.

(6) The basis and relevant proof for requesting compensation for losses.

(7) The basis, calculation method, and relevant proof for requesting payment of liquidated damages.

(8) Relevant documents negotiated or processed by relevant departments before filing a lawsuit.

(9) Other basis related to litigation.

In addition to providing general proof and evidence, other necessary evidence must also be provided according to the content of the litigation request:

(1) In case of disputes over construction and construction project contracting contracts, the following documents must be provided: the original investment plan approved by the state, the plan task book, the business license of the engineering contracting unit (if a copy is required, it must be checked against the original and marked before returning the original), the technical level certificate, the construction permit, the engineering final account and its review opinion, and the engineering acceptance report.

(2) In case of quality disputes, a quality inspection appraisal report must be provided. If there are regulations for product sealing acceptance, there should be explanations on the date and method of product sealing, as well as relevant physical objects.

(3) For technical contract disputes, it is necessary to provide technical information related to the contract, feasibility study, technical evaluation report, project task book and plan, technical standards and specifications, original design and process documents, as well as drawings, tables, data photos, etc.

(4) Trademark infringement disputes must provide: the text, graphics, and approval date of the registered trademark; Physical and documentary evidence of counterfeit products; The basis and evidence for calculating the extent of damage and economic amount.

(5) For patent infringement disputes, it is necessary to provide: patent certificates, physical and documentary evidence of the infringement, specific explanations of the similarities and differences between the patented product and the infringing product, calculation basis and evidence of the extent of damage and economic amount.

(6) For disputes related to foreign economic contracts, the following documents must be provided: company articles of association, commercial and tax registration documents, invoices, bill of lading, and shipping documents. The evidence materials provided, if from Hong Kong and Macau, must be notarized; If it is from a foreign country, it must be notarized and authenticated by my embassy or consulate abroad.