Any contract signed directly according to the national economic plan is called a planned contract. Such as purchase and sale contracts and construction contracts signed by enterprise legal persons according to national plans. Ordinary contracts, also known as unplanned contracts, are not based on national plans. The contract between citizens is a typical unplanned contract. Since the reform of economic system in China, planned contracts have been decreasing day by day. Under the condition of socialist market economy, the planned contract has been controlled in a very small range.

2. Dual service contracts and single service contracts

A bilateral contract is a contract in which both parties undertake obligations, and the obligations and rights of both parties are interrelated and mutually causal. For example, the investigation of employers who buy and sell the new labor contract law.

Contracts, contracting contracts, entrustment contracts (free and paid) and trusteeship contracts (free and paid). A unilateral contract refers to a contract in which only one party undertakes obligations and the other party only enjoys rights. Gifts (the only pure free contract) and natural loans (both free and paid) are typical unilateral contracts.

3. Paid contracts and unpaid contracts

A paid contract is a contract in which one party must pay a certain price to the other party in order to obtain rights. A gratuitous contract is a contract in which one party only obtains rights without paying the price, so it is also called a favor contract. The former, such as buying and selling, reciprocal contracts, etc. , the latter such as gifts, use contracts, etc. Some contracts can be paid or unpaid and determined by the parties through consultation, such as entrustment and custody contracts. Bilateral contracts are paid contracts, and unilateral contracts are free contracts in principle, but some unilateral contracts can also be paid contracts, such as interest-bearing loan contracts.

4. Promised contracts and actual contracts

If both parties agree on the meaning of the contract, the contract is not accepted. Unless both parties agree, the contract can only be established if it is paid in kind. It is a practical contract, also known as a material contract.

5. Basic contracts and non-basic contracts

A contract is mandatory if it is valid only in a specific form; On the contrary, it is an unnecessary contract. The Economic Contract Law of the People's Republic of China stipulates that contracts between legal persons shall be concluded in written form except for immediate settlement. Except in written form, contracts for the sale of houses between citizens must be registered and transferred with the competent state authorities.

6. Master Contract and Slave Contract

A contract that can be established independently without the existence of other contracts is called a master contract. A contract that can only be established on the premise that other contracts exist is called an accessory contract. For example, the creditor's rights contract is the main contract, and the guarantee contract to ensure the performance of the contract debts is the subordinate contract. The existence of the master contract is the premise of the slave contract, so when the master contract is eliminated, the slave contract is also eliminated in principle. On the contrary, the termination of the contract does not affect the validity of the main contract.

Contracts and appointments

An agreement to conclude a contract in the future is an agreement. The contract concluded after the performance of the appointment is this contract, that is, this contract. Where there is an agreement, everyone has the obligation to conclude this contract. If the breach of the agreement causes losses to the other party, it shall also bear civil liability. Contracts for the benefit of the contracting parties and contracts for the benefit of third parties.

According to whose benefit the contract is concluded, the contract can be divided into two categories: one for the benefit of both parties and the other for the benefit of a third party. A contract for the benefit of both parties refers to a contract in which only both parties enjoy contractual rights and directly benefit. A contract for the benefit of a third party refers to a contract in which one party creates rights for a third party rather than for himself, so as to obtain benefits. In this kind of contract, the third party is neither a party nor an agent, but can directly enjoy some rights of the contract and obtain benefits directly based on the contract. Such as insurance contracts concluded for the benefit of third parties.

A fixed contract, also known as a fixed contract or a format contract, refers to a contract in which the terms are drawn up by one party in advance and the other party can only agree or disagree, that is, one party either accepts the terms of the contract as a whole or does not enter into a contract.