With the deepening of education reform and the needs of education development, more and more attention is being paid to students' language writing ability. Language writing is an important means to cultivate students' comprehensive language use ability and an important way to improve their comprehensive literacy. In order to better promote the construction and development of primary school language courses, nowadays, in the process of teaching primary school writing, teachers should stand on the children's position, pay active attention to the children's real life status, carefully plan and construct the students' life experience system, so that the students can complete the construction of the main body of the framework of the content of the assignment in the real and intentional life experience, and guide the students to pay attention to the life, awakening experience, accumulation of rich materials, so that the assignment will be more effective. Rich material, so that the content of the work of words and real sense, get rid of false, big, empty unrealistic sky, get rid of the "set work", fixed template of the undesirable phenomenon. Let the students' work content close to real life, full of real emotions, learn to choose the right life materials, build the structure of the composition, can think hard from different perspectives to express creatively. Let the assignments have something to say, let the assignments have a method to say, let the assignments have a character to say. This study focuses on students' writing in the fifth and sixth grades of primary school, focusing on life experience. The important value and significance of life experience in the teaching of language assignments in the upper primary grades helps teachers to update the concept of teaching assignments in a timely manner, improves primary school students' enjoyment of assignments, and then promotes the construction and development of primary school language assignments education.