diff --git a/src/core/primitive_parser.rs b/src/core/primitive_parser.rs
index 1a096c5..3f3eb9b 100644
--- a/src/core/primitive_parser.rs
+++ b/src/core/primitive_parser.rs
@@ -1,5 +1,6 @@
 use std::fs;
 use std::path::PathBuf;
+use std::sync::RwLock;
 use std::{collections::HashMap, fs::File};
 use std::io::{BufReader, Read};
 
@@ -12,6 +13,23 @@ use xml::reader::{EventReader, XmlEvent};
 use super::hdlparam::{FastHdlparam, InstParameter, Macro, Range};
 use super::sv_parser::{get_identifier, get_instance_params, get_instance_ports, get_position, get_pp_range};
 
+pub struct PrimitiveText {
+    pub name_to_text: RwLock<HashMap<String, String>>
+}
+
+impl PrimitiveText {
+    pub fn new() -> Self {
+        Self {
+            name_to_text: RwLock::new(HashMap::<String, String>::new())
+        }
+    }
+
+    pub fn update_text(&self, name: &str, text: &str) {
+        let mut text_map = self.name_to_text.write().unwrap();
+        text_map.insert(name.to_owned(), text.to_owned());
+    }
+}
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Template {
     pub text: String,
diff --git a/src/server.rs b/src/server.rs
index b0141bd..71a7a33 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -207,6 +207,8 @@ impl LanguageServer for Backend {
         info!("extensionPath: {:?}", configure.extension_path);
         info!("toolChain: {:?}", configure.tool_chain);
 
+        self.server.srcs.init_primitive(&configure.extension_path);
+
         let text_document_sync = TextDocumentSyncCapability::Options(
             TextDocumentSyncOptions {
                 open_close: Some(true),
diff --git a/src/sources.rs b/src/sources.rs
index fb3f38d..31f3882 100644
--- a/src/sources.rs
+++ b/src/sources.rs
@@ -1,4 +1,5 @@
 use crate::core::hdlparam::HdlParam;
+use crate::core::primitive_parser::PrimitiveText;
 use crate::core::sv_parser::make_fast_from_syntaxtree;
 use crate::core::vhdl_parser::make_fast_from_design_file;
 use crate::core::vhdl_parser::vhdl_parse_str;
@@ -223,6 +224,8 @@ pub struct Sources {
     pub scope_tree: Arc<RwLock<Option<GenericScope>>>,
     // include directories, passed to parser to resolve `include
     pub include_dirs: Arc<RwLock<Vec<PathBuf>>>,
+    // primitive instance text
+    pub primitive_text: Arc<PrimitiveText>,
     /// hdlparam 后端实现
     pub hdl_param: Arc<HdlParam>,
     // 同步解析线程和发送 fast 请求的
@@ -243,11 +246,26 @@ impl Sources {
             meta: Arc::new(RwLock::new(Vec::new())),
             scope_tree: Arc::new(RwLock::new(None)),
             include_dirs: Arc::new(RwLock::new(Vec::new())),
+            primitive_text: Arc::new(PrimitiveText::new()),
             hdl_param: Arc::new(HdlParam::new()),
             fast_sync_controller: Arc::new(RwLock::new(HashMap::<String, Arc<RwLock<bool>>>::new()))
         }
     }
 
+    pub fn init_primitive(&self, extension_path: &str) {
+        let primitive_bin = extension_path.to_string() + "/resources/dide-lsp/static/primitive.bin";
+        if let Some(primitive_xml) = crate::core::primitive_parser::load_primitive_bin(&primitive_bin) {
+            let primitive_text_handle = self.primitive_text.clone();
+            let hdl_param_handle = self.hdl_param.clone();
+            for (name, template) in primitive_xml.name_to_template {
+                // use "primitive/name" as a fake path
+                let fake_path = "primitive/".to_string() + &name;
+                hdl_param_handle.update_fast(fake_path, template.fast);
+                primitive_text_handle.update_text(&name, &template.text);
+            }
+        }
+    }
+
     /// 增加一个 hdl 文件，并为该文件添加单独的解析线程
     pub fn add(&self, server: &LSPServer, doc: TextDocumentItem) {
         // 对于当前的文件增加一个解析线程，不断进行解析和同步